Specific heat is defined as:

The amount of energy needed to increase a substance’s temperature by 1 degree C.

the energy required to transform a given quantity of a substance into a gas

the amount of thermal energy which must be absorbed or evolved for 1 mole of a substance to change states from a solid to a liquid or vice versa

the amount of energy in the form of heat released or absorbed by a chemical substance during a change of state

Which of the following is not a property of metals?

Many exist as diatomic molecules

Tend to lose electrons in reactions with non-metals

Good conductors of heat and electricity

Chem & Physics II - Quiz 1

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1/80 Questions

You are SRNA for Mr. Celsius today. When reading his temperature the monitor reads 35 degrees Celsius. What is his temperature in Fahrenheit?
- 95
- 94
- 97
- 99

About This Quiz

A quiz reviewing the material for the first test of chem and physics II. Included is inorganic review, organic review, and inhalatational agents.

Quiz Preview

2.

Today you car caring for Mr. Fahrenheit whose temperature is currently 98.6 degrees Fahrenheit. What is his temperature in Celsius?
- 36
- 37
- 35
- 38
Correct Answer

A. 37

Explanation

To convert a temperature from Fahrenheit to Celsius, you subtract 32 from the Fahrenheit temperature and then multiply the result by 5/9. In this case, subtracting 32 from 98.6 gives 66.6, and multiplying that by 5/9 gives approximately 37. Therefore, Mr. Fahrenheit's temperature in Celsius is 37.

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3.

How many significant figures are in this number? 0.0584
- 5
- 4
- 3
- None
Correct Answer

A. 3

Explanation

The number 0.0584 has three significant figures. Significant figures are the digits in a number that carry meaningful information. In this case, the digits 5, 8, and 4 are significant because they are non-zero digits and they are not trailing zeros. The leading zero before the decimal point is not significant. Therefore, the number has three significant figures.

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4.

How many significant figures are in this number? 10,000
- 1
- 2
- 5
- 4
Correct Answer

A. 5

Explanation

The number 10,000 has five significant figures because all the non-zero digits are significant, and there are no trailing zeros.

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5.

How many significant figures are in this number? 2077.50
- 6
- 4
- 5
- 3
Correct Answer

A. 6

Explanation

The number 2077.50 has six significant figures. Significant figures are the digits in a number that carry meaning and contribute to its precision. In this case, all the digits (2, 0, 7, 7, 5, and 0) are significant and contribute to the overall precision of the number.

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6.

Hemoglobin is an example of a…
- Element
- Compound
- Homogenous mixture
- Heterogenous mixture
Correct Answer

A. Compound

Explanation

Hemoglobin is a compound because it is composed of different elements, namely carbon, hydrogen, oxygen, nitrogen, and iron. It is a complex protein found in red blood cells that is responsible for carrying oxygen throughout the body. Compounds are formed when two or more elements chemically combine in fixed ratios, and hemoglobin fits this definition as it is made up of specific elements in a specific arrangement.

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7.

You are donating blood today! Hurray to you for being a super citizen. As the blood comes out of your arm and flows into the bag it contains your RBC’s, WBC’s, and Plasma. This would be an example of what type of mixture?
- Compound
- Homogenous
- Heterogenous
- Elemental
Correct Answer

A. Heterogenous

Explanation

The blood in the bag contains different components - red blood cells, white blood cells, and plasma. These components are not evenly distributed throughout the mixture, making it heterogeneous.

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8.

Which of the following is not an observed property of matter?
- Density
- Shape
- Compressibility
- Volume
- Thermal Expansion
Correct Answer

A. Volume

Explanation

Volume is an observed property of matter. It refers to the amount of space that a substance occupies. It can be measured and is a characteristic property of different substances. Density is also an observed property of matter, which is the mass of a substance per unit volume. Shape, compressibility, and thermal expansion are all observed properties of matter as well.

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9.

The Tec 6 Vaporizer, used for Desflurane, provides us an example of what type of reaction?
- Endothermic
- Sublimation
- Exothermic
- Condensation
Correct Answer

A. Endothermic

Explanation

The Tec 6 Vaporizer is used for Desflurane, which is a volatile liquid anesthetic. When Desflurane is administered through the vaporizer, it undergoes a phase change from liquid to gas, which requires an input of heat energy. This process is known as vaporization or evaporation, and it is an example of an endothermic reaction.

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10.

Dry ice is an example of what sort of reaction?
- Exothermic
- Sublimation
- Melting
- Vaporization
Correct Answer

A. Sublimation

Explanation

Dry ice is an example of sublimation because it undergoes a phase change directly from a solid to a gas without passing through the liquid phase. Sublimation occurs when a substance absorbs enough energy to break the intermolecular forces holding its particles together, causing them to transition from a solid to a gas. In the case of dry ice, which is solid carbon dioxide, it sublimes at a temperature of -78.5 degrees Celsius (-109.3 degrees Fahrenheit).

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11.

After intubating your patient for see condensation within the patient ETT. This is an example of what sort of reaction?
- Endothermic
- Crystallization
- Exothermic
- Evaporation
Correct Answer

A. Exothermic

Explanation

When intubating a patient, if condensation is observed within the patient's endotracheal tube (ETT), it indicates an exothermic reaction. Exothermic reactions release heat energy to the surroundings. In this case, the warm, moist air exhaled by the patient is cooling down and condensing within the ETT, causing the formation of water droplets. This reaction is exothermic because heat is being transferred from the warm air to the surrounding environment.

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12.

Specific heat is defined as:
- The energy required to transform a given quantity of a substance into a gas
- The amount of thermal energy which must be absorbed or evolved for 1 mole of a substance to change states from a solid to a liquid or vice versa
- The amount of energy in the form of heat released or absorbed by a chemical substance during a change of state
- The amount of energy needed to increase a substance’s temperature by 1 degree C.
Correct Answer

A. The amount of energy needed to increase a substance’s temperature by 1 degree C.

Explanation

The correct answer is the amount of energy needed to increase a substance's temperature by 1 degree C. This definition of specific heat refers to the amount of energy required to raise the temperature of a substance by a certain amount. It is a measure of how much heat energy is needed to cause a temperature change in a given amount of substance.

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13.

The positively charged particles in the nucleus of the atom are called:
- Protons
- Neutrons
- Electrons
- Quantums
Correct Answer

A. Protons

Explanation

Protons are positively charged particles found in the nucleus of an atom. They have a mass of approximately 1 atomic mass unit and are responsible for determining the atomic number of an element. Protons play a crucial role in defining the chemical properties of an atom and are involved in chemical reactions. Neutrons, on the other hand, are neutral particles found in the nucleus, while electrons are negatively charged particles orbiting the nucleus. Quantums is not a term used to describe particles in the nucleus of an atom.

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14.

An atom with identical Atomic numbers but different mass numbers is known as:
- Isomers
- Isotopes
- Stereoisomers
- Chiral
Correct Answer

A. Isotopes

Explanation

Isotopes are atoms of the same element that have the same number of protons (atomic number) but different numbers of neutrons (mass number). This means that isotopes have different atomic masses. Isotopes can have similar chemical properties due to their identical number of protons, but their physical properties may vary due to differences in mass. Therefore, an atom with identical atomic numbers but different mass numbers is known as isotopes.

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15.

Cl⁻ is an example of :
- Cation
- Isomer
- Anion
- None of above
Correct Answer

A. Anion

Explanation

Cl- is an example of an anion because it is a negatively charged ion. Anions are formed when an atom gains electrons, resulting in a negative charge. In the case of Cl-, chlorine gains one electron to achieve a stable electron configuration, making it an anion. Cations, on the other hand, are positively charged ions formed when an atom loses electrons. Isomers are different forms of the same compound, and none of the above refers to options other than cation, isomer, or anion, which do not apply in this case.

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16.

According to it’s charge, how many electrons has K⁺gained or lost?
- None, this element is stable
- It has lost one electron
- It has gained one electron
Correct Answer

A. It has lost one electron

Explanation

The correct answer is "It has lost one electron." The question is asking about the charge of K+. The "+" sign indicates that the element has lost one electron, resulting in a positive charge.

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17.

Which of the following elements is likely to form an Anion easily?
- Flourine
- Helium
- Potassium
- Sodium
Correct Answer

A. Flourine

Explanation

Fluorine is likely to form an anion easily because it is a highly electronegative element. It has seven valence electrons and only needs one more electron to achieve a stable electron configuration, which it can easily gain by accepting an electron from another atom. This results in the formation of a negatively charged ion, or an anion. Helium, potassium, and sodium are unlikely to form anions easily as they have low electronegativity and tend to lose electrons to form cations instead.

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18.

Metals are more likely to form which type of Ion?
- Anion
- Cation
- Polyatomic
- Isotopic
Correct Answer

A. Cation

Explanation

Metals are more likely to form cations because they tend to lose electrons in chemical reactions. Cations are positively charged ions, formed when an atom loses one or more electrons. Since metals have relatively low ionization energies, they can easily lose electrons from their outermost energy level, resulting in a more stable electron configuration. This loss of electrons creates a positively charged cation.

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19.

OH^-is an example of a:
- Cation
- Isotope
- Polyatomic Ion
- Covalent Bond
Correct Answer

A. Polyatomic Ion

Explanation

OH- is an example of a polyatomic ion because it is a charged molecule composed of two or more atoms that are covalently bonded together. In this case, the hydroxide ion (OH-) consists of one oxygen atom and one hydrogen atom, with a negative charge. Polyatomic ions are commonly found in chemical compounds and play important roles in various chemical reactions and processes.

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20.

How many molecules of Neon are in one mole?
- 10
- 20.18
- 3.01 x 10(23)
- 6.022 x 10(23)
Correct Answer

A. 6.022 x 10(23)

Explanation

One mole of any substance contains Avogadro's number of particles, which is approximately 6.022 x 10^23. Therefore, there are 6.022 x 10^23 molecules of Neon in one mole.

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21.

The molecular mass of NaCl is approximately 58 grams. How many molecules of NaCl would be contained in 29 grams?
- 3.01 x 10(23)
- 28
- 6.02 x 10(23)
- 58
Correct Answer

A. 3.01 x 10(23)

Explanation

The molecular mass of NaCl is approximately 58 grams. This means that one mole of NaCl weighs 58 grams. The Avogadro's number states that there are 6.02 x 10^23 molecules in one mole of any substance. To find the number of molecules in 29 grams of NaCl, we can set up a proportion: 58 grams is to 6.02 x 10^23 molecules as 29 grams is to x molecules. Solving this proportion, we find that x is approximately 3.01 x 10^23 molecules. Therefore, there are approximately 3.01 x 10^23 molecules of NaCl in 29 grams.

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22.

Which of the following is a Molecular Formula?
- CH3COCH3
- C3H6O
- H3C-C(O)-CH3
- None of the above
Correct Answer

A. C3H6O

Explanation

The correct answer is C3H6O. This is a molecular formula because it represents the actual number and types of atoms present in a molecule. The formula C3H6O indicates that the molecule contains 3 carbon atoms, 6 hydrogen atoms, and 1 oxygen atom. Molecular formulas provide important information about the composition of a compound and can be used to determine its structure and properties.

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23.

Which of the following elements are in the same period of the periodic table?
- F & Br
- H & Ne
- Na & Cl
- None of the above
Correct Answer

A. Na & Cl

Explanation

Na (sodium) and Cl (chlorine) are in the same period of the periodic table because they both have the same number of electron shells. In the periodic table, elements in the same period have the same number of electron shells, which determines their chemical properties and reactivity. Sodium and chlorine are both in the third period of the periodic table, meaning they have three electron shells. Therefore, they are in the same period.

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24.

Which of the following elements is a Halogen?
- Helium
- Potassium
- Magnesium
- Iodine
Correct Answer

A. Iodine

Explanation

Iodine is a halogen because it belongs to Group 17 of the periodic table, also known as the halogens. Halogens are highly reactive nonmetals that have seven valence electrons and readily form compounds with other elements. Iodine specifically is a dark purple solid at room temperature and is commonly used in disinfectants and as a nutrient in some diets.

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25.

Which of the following is not a property of metals?
- Many exist as diatomic molecules
- Tend to lose electrons in reactions with non-metals
- Good conductors of heat and electricity
- Malleable and Ductile
Correct Answer

A. Many exist as diatomic molecules
26.

How valence electrons does Aluminum have? 1s²2s²2p⁶ 3s²3p¹
- 3
- 1
- 2
- 6
Correct Answer

A. 3

Explanation

The electron configuration provided for aluminum shows that it has 3 valence electrons. Valence electrons are the electrons in the outermost energy level of an atom, and in this case, the outermost energy level is the 3rd energy level. The 3s2 and 3p1 electrons in the configuration are the valence electrons for aluminum, giving it a total of 3 valence electrons.

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27.

How would you properly express the electron filling of Bromine?
- [He][Ne][Ar] 3d10 4s2 4p5
- [Ar] 4s2 4p5
- [Ar] 3d10 4s2 4p5
- [Ar] 4s2 3d10 4p5
Correct Answer

A. [Ar] 4s2 3d10 4p5

Explanation

The correct answer is [Ar] 4s2 3d10 4p5. This answer represents the electron filling of Bromine by indicating the electron configuration of the atom. The [Ar] represents the noble gas configuration of Argon, which includes the filled 3p and 3s orbitals. The 4s2 indicates that the 4s orbital is filled with 2 electrons, and the 3d10 indicates that the 3d orbital is filled with 10 electrons. Finally, the 4p5 indicates that the 4p orbital is filled with 5 electrons.

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28.

Which Orbital would be the next to get filled after orbital 3s?
- 2d
- 2p
- 3p
- 4s
Correct Answer

A. 3p

Explanation

After filling the 3s orbital, the next orbital to be filled would be the 3p orbital. Electrons fill orbitals in order of increasing energy, and the 3p orbital has a slightly higher energy than the 3s orbital. Therefore, it would be the next orbital to receive electrons.

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29.

Which orbital is the next to get filled after orbital 5s?
- 4d
- 5p
- 3f
- 6s
Correct Answer

A. 4d

Explanation

After the 5s orbital, the next orbital to get filled is the 4d orbital. This is because in the filling order of orbitals, the energy levels increase as the principal quantum number (n) increases. The 4d orbital has a higher energy level than the 5p and 3f orbitals, but a lower energy level than the 6s orbital. Therefore, the 4d orbital is the next to get filled.

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30.

How would you properly write the electron distribution for Argon?
- [Ar]
- [Ne] 3s2 3p6
- [Ne] 3s2 2d10 3p6
- [He][Ne] 3s2 3p6
Correct Answer

A. [Ne] 3s2 3p6

Explanation

The electron distribution for Argon is represented by the configuration [Ne] 3s2 3p6. This means that Argon has a total of 18 electrons. The [Ne] represents the electron configuration of the noble gas Neon, which has 10 electrons. The 3s2 and 3p6 represent the remaining 8 electrons in the 3rd energy level.

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31.

Why are Halogens among the most reactive of the elements?
- Due to the number of neutrons in the nucleus which makes these atoms highly unstable
- They need to lose one electron before having a full valence shell
- They need to gain only one electron to before having a full valence shell
- Because their lighter atomic weight and high kinetic energy.
Correct Answer

A. They need to gain only one electron to before having a full valence shell

Explanation

Halogens are among the most reactive elements because they need to gain only one electron to have a full valence shell. This makes them highly reactive as they readily form compounds by gaining electrons from other elements. This electron gain is driven by the halogens' strong desire to achieve a stable electron configuration, similar to the noble gases. As a result, halogens have a high affinity for electrons and readily react with other elements to achieve a full valence shell.

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32.

Which type of chemical bond is present in Cl₂?
- Ionic
- Polyatomic
- Covalent
- Both A & B
Correct Answer

A. Covalent

Explanation

The type of chemical bond present in Cl2 is covalent. This is because Cl2 consists of two chlorine atoms that share electrons to form a stable molecule. In a covalent bond, atoms share electrons in order to achieve a full outer electron shell and increase stability. Ionic bonds involve the transfer of electrons from one atom to another, while polyatomic bonds involve the sharing of electrons between multiple atoms. Therefore, the correct answer is covalent.

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33.

In a chemical reaction, an enzyme is generally an example of a…
- Polyatomic Ion
- Inhibitor
- Entropic Molecule
- Catalyst
Correct Answer

A. Catalyst

Explanation

An enzyme is generally an example of a catalyst. Catalysts are substances that increase the rate of a chemical reaction without being consumed in the process. Enzymes are biological catalysts that speed up specific biochemical reactions in living organisms. They lower the activation energy required for the reaction to occur, allowing it to proceed more quickly. Enzymes are highly specific in their function and can catalyze a wide range of reactions in cells.

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34.

Which of the following will have the greatest length between atoms?
- Single bond
- Double bond
- Triple bond
- All are Equal
Correct Answer

A. Single bond

Explanation

A single bond will have the greatest length between atoms because it consists of only one shared pair of electrons. In a double bond, there are two shared pairs of electrons, which creates more electron density and pulls the atoms closer together. Similarly, a triple bond has three shared pairs of electrons, resulting in even greater electron density and a shorter bond length. Therefore, the single bond will have the greatest distance between the atoms.

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35.

What are these an example of: 1) H3C—CH2—CH2 – CH3 2) CH3 I CH3—CH—CH3
- Enantiomers
- Structural Isomers
- Chiral Compounds
- Butane
Correct Answer

A. Structural Isomers

Explanation

The given compounds have the same molecular formula, but different structural arrangements. They have different connectivity of atoms, which results in different chemical and physical properties. Therefore, they are examples of structural isomers.

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36.

What is the difference between an Alkyne and an Alkane?
- The alkane possesses a triple bond
- The alkane possesses a functional group attached to it.
- The alkyne possesses a triple bond.
- The alkyne possesses a double bond.
Correct Answer

A. The alkyne possesses a triple bond.

Explanation

The correct answer is that the alkyne possesses a triple bond. Alkynes are hydrocarbons that contain a carbon-carbon triple bond, whereas alkanes are hydrocarbons that only contain single bonds between carbon atoms. This triple bond in alkynes gives them different chemical properties and reactivity compared to alkanes.

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37.

What functional Group is shown here? CH₃—Br
- Thiol
- Aldehyde
- Ketone
- Halide
Correct Answer

A. Halide

Explanation

The functional group shown in the given compound CH3—Br is a halide. This is indicated by the presence of the halogen atom (Br) bonded to a carbon atom (CH3). Halides are organic compounds that contain a halogen atom, such as fluorine, chlorine, bromine, or iodine, bonded to a carbon atom. In this case, the halogen atom is bromine, so the compound is a bromide or halide.

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38.

What functional group is shown here? CH₃—CH₂—OH
- Alcohol
- Amine
- Ether
- Aldehyde
Correct Answer

A. Alcohol

Explanation

The functional group shown in the given structure is an alcohol. This is indicated by the -OH group attached to the carbon chain. Alcohols are organic compounds that contain a hydroxyl group (-OH) bonded to a carbon atom. In this case, the -OH group is attached to the second carbon atom in the chain, making it an alcohol.

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39.

What functional Group is shown here? CH₃CH₂OCH₂CH₃
- Ester
- Ether
- Ketone
- Carboxylic Acid
Correct Answer

A. Ether

Explanation

The functional group shown in the given chemical structure is an ether. An ether is characterized by an oxygen atom bonded to two alkyl or aryl groups. In this case, the oxygen atom is bonded to two ethyl (CH3CH2) groups, indicating the presence of an ether functional group.

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40.

What functional group is shown here? CH₃ – CH₂—NH₂
- Sulfide
- Halide
- Amine
- Nitro Compound
Correct Answer

A. Amine

Explanation

The functional group shown in the given compound CH3 – CH2—NH2 is an amine. Amines are organic compounds that contain a nitrogen atom bonded to one or more alkyl or aryl groups. In this case, the compound has an alkyl group (CH3 – CH2) bonded to an amino group (NH2), which consists of a nitrogen atom bonded to two hydrogen atoms. Therefore, the correct answer is Amine.

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41.

What functional group is shown here? CH₃ – CH₂ – NO₂
- Amine
- Aldehyde
- Carboxylic Acid
- Nitro Compound
Correct Answer

A. Nitro Compound

Explanation

The functional group shown in the given chemical structure is a nitro compound. This is indicated by the presence of the NO2 group, which consists of a nitrogen atom bonded to two oxygen atoms. Nitro compounds are characterized by this functional group and are commonly found in organic chemistry.

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42.

What functional group is shown here? CH₃ – SH
- Sulfide
- Thiol
- Halide
- Nitrite
Correct Answer

A. Thiol

Explanation

The functional group shown in the given compound CH3 – SH is a thiol. Thiols are organic compounds that contain a sulfur atom bonded to a hydrogen atom. In this compound, the sulfur atom is bonded to a methyl group (CH3) and a hydrogen atom (H), indicating the presence of a thiol functional group.

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43.

What functional group is shown here? CH₃ – S – CH₃
- Sulfide
- Thiol
- Halide
- Aldehyde
Correct Answer

A. Sulfide

Explanation

The functional group shown in the given structure is a sulfide. A sulfide is a compound that contains a sulfur atom bonded to two carbon atoms. In this case, the sulfur atom is bonded to two methyl (CH3) groups.

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44.

Which functional group is shown here? O II CH₃ – CH₂ – C – H
- Ketone
- Alcohol
- Aldehyde
- Carboxylic Acid
Correct Answer

A. Aldehyde

Explanation

The functional group shown in the structure is an aldehyde. This is indicated by the presence of a carbonyl group (C=O) attached to a carbon atom, which is also bonded to a hydrogen atom. Aldehydes are organic compounds that have a carbonyl group located at the end of a carbon chain. In this case, the carbon chain consists of two carbon atoms (CH3-CH2-C=O), with the aldehyde group (C=O) at the end.

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45.

What functional group is shown here? O II CH₃ – CH₂—CH – CH₃
- Aldehyde
- Amide
- Ether
- Ketone
Correct Answer

A. Ketone

Explanation

The functional group shown in the given structure is a ketone. A ketone is characterized by a carbonyl group (C=O) bonded to two carbon atoms. In the given structure, the carbonyl group is bonded to two carbon atoms, indicating that it is a ketone.

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46.

What functional Group is shown here? O II CH₃ – C – O – H
- Carboxylic Acid
- Acid Halide
- Ester
- Thiol
Correct Answer

A. Carboxylic Acid

Explanation

The functional group shown in the given structure is a carboxylic acid. This can be identified by the presence of the carboxyl group, which consists of a carbonyl group (C=O) and a hydroxyl group (OH) attached to the same carbon atom. In the given structure, the carboxyl group is represented by the -COOH group. Carboxylic acids are organic compounds that are characterized by their acidic properties and are commonly found in many biological and chemical processes.

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47.

How would you name this compound? CH₂ / \ CH₂ --- CH₂
- Isopropyl
- Cyclopropane
- Cyclobutane
- SecButyl
Correct Answer

A. Cyclopropane

Explanation

The compound shown in the question has three carbon atoms arranged in a cyclic structure. This type of compound is called cyclopropane. Cyclopropane consists of a three-membered ring, where each carbon atom is bonded to two hydrogen atoms. Therefore, the correct name for this compound is Cyclopropane.

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48.

How would you name this compound? H₃C–CH₂–CH₂–CH₂–CH₂–CH₂–CH₃
- Hexane
- Nonane
- Heptane
- Butane
Correct Answer

A. Heptane

Explanation

The given compound has a total of 7 carbon atoms, which corresponds to the prefix "hept-" in the IUPAC naming system. The compound also has only single bonds between the carbon atoms, indicating that it is an alkane. Therefore, the correct name for this compound is heptane.

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49.

How would you name this compound? H₃C–CH₂–CH(CH₂CH₃)–CH₂–CH₃
- 3 methyl hexane
- Heptane
- 3 ethyl heptane
- 3 ethyl pentane
Correct Answer

A. 3 ethyl pentane

Explanation

The compound is named as 3 ethyl pentane because it contains a pentane backbone with an ethyl group attached to the third carbon atom. The other options, 3 methyl hexane and heptane, do not accurately describe the structure of the compound.

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Chem & Physics II - Quiz 1

You are SRNA for Mr. Celsius today. When reading his temperature the monitor reads 35 degrees Celsius. What is his temperature in Fahrenheit?

Quiz Preview

Today you car caring for Mr. Fahrenheit whose temperature is currently 98.6 degrees Fahrenheit. What is his temperature in Celsius?

How many significant figures are in this number? 0.0584

How many significant figures are in this number? 10,000

How many significant figures are in this number? 2077.50

Hemoglobin is an example of a…

You are donating blood today! Hurray to you for being a super citizen. As the blood comes out of your arm and flows into the bag it contains your RBC’s, WBC’s, and Plasma. This would be an example of what type of mixture?

Which of the following is not an observed property of matter?

The Tec 6 Vaporizer, used for Desflurane, provides us an example of what type of reaction?

Dry ice is an example of what sort of reaction?

After intubating your patient for see condensation within the patient ETT. This is an example of what sort of reaction?

Specific heat is defined as:

The positively charged particles in the nucleus of the atom are called:

An atom with identical Atomic numbers but different mass numbers is known as:

Cl− is an example of :

According to it’s charge, how many electrons has K+ gained or lost?

Which of the following elements is likely to form an Anion easily?

Metals are more likely to form which type of Ion?

OH- is an example of a:

How many molecules of Neon are in one mole?

The molecular mass of NaCl is approximately 58 grams. How many molecules of NaCl would be contained in 29 grams?

Which of the following is a Molecular Formula?

Which of the following elements are in the same period of the periodic table?

Which of the following elements is a Halogen?

Which of the following is not a property of metals?

How valence electrons does Aluminum have? 1s2 2s2 2p6 3s2 3p1

How would you properly express the electron filling of Bromine?

Which Orbital would be the next to get filled after orbital 3s?

Which orbital is the next to get filled after orbital 5s?

How would you properly write the electron distribution for Argon?

Why are Halogens among the most reactive of the elements?

Which type of chemical bond is present in Cl2?

In a chemical reaction, an enzyme is generally an example of a…

Which of the following will have the greatest length between atoms?

What are these an example of: 1) H3C—CH2—CH2 – CH3 2) CH3 I CH3—CH—CH3

What is the difference between an Alkyne and an Alkane?

What functional Group is shown here? CH3—Br

What functional group is shown here? CH3—CH2—OH

What functional Group is shown here? CH3CH2OCH2CH3

What functional group is shown here? CH3 – CH2—NH2

What functional group is shown here? CH3 – CH2 – NO2

What functional group is shown here? CH3 – SH

What functional group is shown here? CH3 – S – CH3

Which functional group is shown here? O II CH3 – CH2 – C – H

What functional group is shown here? O II CH3 – CH2—CH – CH3

What functional Group is shown here? O II CH3 – C – O – H

How would you name this compound? CH2 / \ CH2 --- CH2

How would you name this compound? H3C–CH2–CH2–CH2–CH2–CH2–CH3

How would you name this compound? H3C–CH2–CH(CH2CH3)–CH2–CH3

Cl⁻ is an example of :

According to it’s charge, how many electrons has K⁺gained or lost?

OH^-is an example of a:

How valence electrons does Aluminum have? 1s²2s²2p⁶ 3s²3p¹

Which type of chemical bond is present in Cl₂?

What functional Group is shown here? CH₃—Br

What functional group is shown here? CH₃—CH₂—OH

What functional Group is shown here? CH₃CH₂OCH₂CH₃

What functional group is shown here? CH₃ – CH₂—NH₂

What functional group is shown here? CH₃ – CH₂ – NO₂

What functional group is shown here? CH₃ – SH

What functional group is shown here? CH₃ – S – CH₃

Which functional group is shown here? O II CH₃ – CH₂ – C – H

What functional group is shown here? O II CH₃ – CH₂—CH – CH₃

What functional Group is shown here? O II CH₃ – C – O – H

How would you name this compound? CH₂ / \ CH₂ --- CH₂

How would you name this compound? H₃C–CH₂–CH₂–CH₂–CH₂–CH₂–CH₃

How would you name this compound? H₃C–CH₂–CH(CH₂CH₃)–CH₂–CH₃