Chm02 - Organic Chemistry (Lec)

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  • 1/20 Questions

    Atoms with relatively similar electro negativities _____________ between them and are connected by covalent bonds.

    • Pair Electron
    • Donate Electron
    • Share Electron
    • Received Electron
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Chm02 - Organic Chemistry (Lec) - Quiz

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  • 2. 

    It is a particle having a positive charge.

    • Proton

    • Electron

    • Neutron

    • Ion

    Correct Answer
    A. Proton
    Explanation
    A proton is a subatomic particle that carries a positive charge. It is found in the nucleus of an atom, along with neutrons. Protons are essential for determining the atomic number and identity of an element. They are attracted to electrons, which carry a negative charge, and together they form the structure of an atom. Neutrons, on the other hand, are neutral particles and do not carry any charge. Therefore, the correct answer is proton.

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  • 3. 

    It is a particle having a negative charge

    • Proton

    • Neutron

    • Electron

    • Ion

    Correct Answer
    A. Electron
    Explanation
    An electron is a subatomic particle that carries a negative charge. It is one of the fundamental particles that make up an atom, along with protons and neutrons. Electrons are found in the electron cloud surrounding the nucleus of an atom and play a crucial role in determining the chemical and physical properties of elements. They are involved in chemical bonding and electrical conductivity.

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  • 4. 

    Identify what chemical bond will formed in a Na and Cl

    Correct Answer
    Ionic bond
    Explanation
    When a sodium (Na) atom reacts with a chlorine (Cl) atom, an ionic bond is formed. In this bond, the sodium atom donates an electron to the chlorine atom, resulting in the formation of a positively charged sodium ion (Na+) and a negatively charged chloride ion (Cl-). The opposite charges of these ions attract each other, creating a strong electrostatic force that holds them together in a crystal lattice structure. This type of bond occurs between atoms with significantly different electronegativities, leading to the transfer of electrons from one atom to another.

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  • 5. 

    These are the electrons that reside in the outermost shell surrounding an atomic nucleus

    • Electronegativity

    • Electropositivity

    • Valence Electron

    • Ionic Charge

    Correct Answer
    A. Valence Electron
    Explanation
    Valence electrons are the electrons that are located in the outermost shell of an atom. These electrons play a crucial role in determining the chemical properties of an element, as they are involved in the formation of chemical bonds. Valence electrons are responsible for the reactivity and the ability of an atom to gain, lose, or share electrons with other atoms. Therefore, valence electrons are the electrons that reside in the outermost shell surrounding an atomic nucleus.

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  • 6. 

    What chemical bond will be form between Mg and Cl

    Correct Answer
    Ionic bond
    Explanation
    Mg and Cl will form an ionic bond because magnesium (Mg) has a tendency to lose two electrons and chlorine (Cl) has a tendency to gain one electron. This transfer of electrons results in the formation of positively charged Mg ions and negatively charged Cl ions. The opposite charges attract each other, creating a strong electrostatic force that holds the ions together, forming an ionic bond.

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  • 7. 

    What chemical bond will form between Mg and O

    Correct Answer
    Ionic bond
    Explanation
    Mg and O will form an ionic bond because magnesium (Mg) has a tendency to lose two electrons and oxygen (O) has a tendency to gain two electrons. This transfer of electrons results in the formation of ions, with Mg becoming a positively charged ion (Mg2+) and O becoming a negatively charged ion (O2-). The opposite charges attract each other, forming an ionic bond between Mg and O.

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  • 8. 

    What chemical bond will be form between C and N

    Correct Answer
    Covalent bond
    Explanation
    A covalent bond is formed between carbon (C) and nitrogen (N). In a covalent bond, atoms share electrons to achieve a stable electron configuration. Carbon has four valence electrons, while nitrogen has five. By sharing electrons, both carbon and nitrogen can complete their outermost electron shells and become more stable. This sharing of electrons results in the formation of a covalent bond between the two atoms.

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  • 9. 

    When can ionic charge be formed?

    • When there is a metal and nonmetal

    • When there are two solids

    • When there are two nonmetals

    • When there are two metals

    Correct Answer
    A. When there is a metal and nonmetal
    Explanation
    Ionic charge is formed when there is a transfer of electrons between a metal and a nonmetal. In this process, the metal loses electrons to become positively charged (cation), while the nonmetal gains those electrons to become negatively charged (anion). This electrostatic attraction between the oppositely charged ions forms an ionic bond, resulting in the formation of an ionic compound. Therefore, the correct answer is "When there is a metal and nonmetal."

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  • 10. 

    These are the center of an atom which making up the nucleus.

    • Proton and Electron

    • Neutron and Electron

    • Proton and Neutron

    • Ion and neutron

    Correct Answer
    A. Proton and Neutron
    Explanation
    Protons and neutrons are the two particles that make up the nucleus of an atom. Protons carry a positive charge, while neutrons have no charge. The number of protons determines the element of the atom, while the number of neutrons can vary, creating different isotopes of the same element. Electrons, on the other hand, orbit around the nucleus in energy levels. Therefore, the correct answer is Proton and Neutron, as they are the center of an atom, making up the nucleus.

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  • 11. 

    Why are ionic compounds brittle?

    • Because they are solids

    • Because when something hits it, a layer of ions is pushed so that they are next to ions of the same charge. They are repulsed by each other and break.

    • Because they are not strong bonds

    • Because when something hits it, a layer of ions is pushed so that they are next to ions of the same charge. They are attracted to each other and break.

    Correct Answer
    A. Because when something hits it, a layer of ions is pushed so that they are next to ions of the same charge. They are repulsed by each other and break.
    Explanation
    Ionic compounds are brittle because when they are subjected to external force, such as being hit, a layer of ions is pushed so that they are next to ions of the same charge. Since ions of the same charge repel each other, this repulsion causes the crystal lattice structure of the ionic compound to break, resulting in the compound shattering or fracturing. This is why ionic compounds are known for their brittleness.

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  • 12. 

    In the process of ionic bonding, nitrogen can be

    • Cation

    • Anion

    • Share electron

    • Donate electron

    Correct Answer
    A. Anion
    Explanation
    In the process of ionic bonding, nitrogen can become an anion. An anion is a negatively charged ion that forms when an atom gains one or more electrons. Nitrogen, with its atomic number of 7, typically forms three covalent bonds to achieve a stable configuration. However, in certain chemical reactions, nitrogen can gain an electron to complete its outer shell and become a nitride ion (N3-), thus becoming an anion.

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  • 13. 

    What chemical bond will be formed between H and O

    Correct Answer
    Covelent bond
    Explanation
    A covalent bond is formed between hydrogen (H) and oxygen (O) atoms. In a covalent bond, the atoms share electrons to achieve a stable electron configuration. In the case of H and O, the oxygen atom needs two additional electrons to complete its outer shell, while the hydrogen atom needs one additional electron. By sharing electrons, both atoms can achieve a stable configuration, forming a covalent bond between them. This type of bond is characterized by the sharing of electrons rather than the transfer of electrons, as in ionic bonds.

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  • 14. 

    It is a bonding describes a variety of interactions that hold atoms together in chemical compounds?

    • Ionic bonding

    • Covalent Bonding

    • Chemical Bonding

    • Nonpolar Covalent Bonding

    Correct Answer
    A. Chemical Bonding
    Explanation
    Chemical bonding refers to the various interactions that hold atoms together in chemical compounds. This can include ionic bonding, covalent bonding, and nonpolar covalent bonding. These different types of bonding involve the sharing, transferring, or redistribution of electrons between atoms to achieve a stable configuration. Chemical bonding is essential for the formation of molecules and compounds, allowing for the creation of new substances with unique properties.

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  • 15. 

    These are the basin units of matter and the defining structure of elements and came from the Greek word which means “invisible”

    • Electron

    • Proton

    • Neutron

    • Atom

    Correct Answer
    A. Atom
    Explanation
    Atoms are the basic units of matter and the defining structure of elements. The word "atom" originated from the Greek word "atomos" which means "invisible". This is because atoms are so small that they cannot be seen with the naked eye. Atoms are composed of three subatomic particles: protons, neutrons, and electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. Together, these particles make up the atom and determine its properties and behavior.

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  • 16. 

    Nickel (II) has a charge of +2. Chlorine has a charge of -1. What is the name of the compound and what is the formula of the compound?

    • Nickel (II) Chloride and NiCl2

    • Nickel Chloride and NiCl2

    • Nickel Chlorine and NiCl

    • Nickel (II) Chloride and Ni2Cl

    Correct Answer
    A. Nickel (II) Chloride and NiCl2
    Explanation
    Nickel (II) Chloride is the correct name for the compound because nickel has a charge of +2 and chlorine has a charge of -1, indicating that two chloride ions are needed to balance the charge of one nickel ion. The formula of the compound is NiCl2, which represents one nickel ion and two chloride ions.

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  • 17. 

    It is a particle that surrounds the nucleus

    • Proton

    • Electron

    • Neutron

    • Ion

    Correct Answer
    A. Neutron
    Explanation
    The given correct answer is "Neutron." Neutrons are subatomic particles that are found in the nucleus of an atom. They have no charge, unlike protons and electrons which are positively and negatively charged, respectively. Neutrons play a crucial role in determining the stability and mass of an atom. They help to hold the nucleus together by balancing the repulsive forces between positively charged protons. Neutrons also contribute to the overall mass of an atom without significantly affecting its chemical properties.

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  • 18. 

    Boron has a charge of +3 and Nitrogen has a charge of -3. What is the chemical compound name and formula?

    • Boron Nitrogen and BN

    • Uniborn Uninitrogen and BN

    • Boron Nitride and B3N3

    • Boron Nitride and BN

    Correct Answer
    A. Boron Nitride and BN
    Explanation
    Boron has a charge of +3 and Nitrogen has a charge of -3. When these two elements combine, they form a compound called Boron Nitride. The chemical formula for Boron Nitride is BN, with one atom of Boron and one atom of Nitrogen.

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  • 19. 

    Lithium has a charge of +1 and Nitrogen has a charge of -3. What would be the name of the compound, in terms of letters AND in terms of chemical symbols? (Note: Subscripts cannot be used, so interpret the numbers in the chemical formulas as subscripts).

    • Lithium Nitride and LiN3

    • Trilithium Nitrogen and Li3N

    • Lithium Nitride and Li3N

    • Trilithium Nitride and LiN

    Correct Answer
    A. Lithium Nitride and Li3N
    Explanation
    The compound formed between lithium and nitrogen is called lithium nitride. In terms of chemical symbols, it is represented as Li3N.

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  • 20. 

    Mercury (II) (Hg) has a charge of +2. Oxygen (O) has a charge of -2. What is the chemical compound name and formula?

    • Mercury (II) Oxide and HgO

    • Mercury Oxide and HgO

    • Mercury (II) Oxide and Hg2O

    • Mercury Oxygen and Hg2O

    Correct Answer
    A. Mercury (II) Oxide and HgO
    Explanation
    Mercury (II) (Hg) has a charge of +2, and Oxygen (O) has a charge of -2. In order to balance the charges and form a neutral compound, one atom of Mercury (II) combines with one atom of Oxygen. Therefore, the chemical compound name is Mercury (II) Oxide and the formula is HgO.

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  • Current Version
  • Mar 19, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 15, 2020
    Quiz Created by
    Manuel Valderama
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