Chemistry Final
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Chemistry Final
- 1.What is the measure of the concentration of H3O+ ions in a given solution?
- A.
POH
- B.
PH
- C.
Weak base
- D.
Strong acid
- 2.What is the formula for Sodium Hydroxide? a. Na(OH)2 b. NaHO c. NaH d. NaOH e. none of the above
- A.
A
- B.
B
- C.
C
- D.
D
- E.
E
- 3.
- A.
True balanced, but not a neutralization reaction
- B.
True
- C.
False
- 4.What is the name of H2CrO4?
- A.
Carbonic acid
- B.
Chromatic acid
- C.
Chromic acid
- 5.What are the products in an acid / base reaction?
- A.
Hydrogen gas and water
- B.
Hydronium ions and hydroxide ions
- C.
A salt and water
- 6.Write the name of the compound CCl4
- A.
Carbon Tetrachlorate
- B.
Carbon Chloride
- C.
Carbonic Acid
- D.
Carbon Tetrachloride
- 7.Using only the periodic table, list the following elements according to increasing electronegativity: Ca, Cs, F, Si
- A.
F, Si, Ca, Cs
- B.
Cs, Ca, Si, F
- C.
Cs, Si, F, Ca
- D.
F, Cs, Ca, Si
- 8.Elements in the middle of the periodic table are ___
- A.
Alkaline Earth Metals
- B.
Rare Earth Metals
- C.
Halogens
- D.
Transition Metalloids
- E.
None of the Above
- 9.Horizontal rows of elements are called ______; Vertical columns of elements are called _______.
- A.
Periods, columns
- B.
Periods, trends
- C.
Periods, groups
- D.
Groups, periods
- 10.Write the name of the compound H2SO4
- A.
Hydrogen Sulfide
- B.
Sulfurous Hydride
- C.
Sulfuric Acid
- D.
DiHydrogen TetraSulfate
- 11.The _______ is the complete arrangement of electrons in an atom and determines how the atom will chemically bond and influences the orientation of its orbital in space, and its spin.
- A.
Electron configuration
- B.
Orbital science
- C.
Chemical properties of an atom
- 12.
- A.
A
- B.
B
- C.
C
- D.
D
- 13.What is the name of the OH- ion?
- A.
Anhydride
- B.
Oxide
- C.
None of the above
- 14.What is the name of the CO3-2 ion?
- A.
Bicarbonate
- B.
Bicarboxide
- C.
Carbonate
- D.
Carbonite
- 15.What coefficient is needed in front of NH3 in order for the following equation to be balanced? N2 + H2 → NH3
- A.
2
- B.
3
- C.
4
- D.
6
- 16.In the electron cloud model of an atom, what accounts for most of the volume?
- A.
Electrons
- B.
Empty space
- C.
Neutrons
- D.
Protons
- 17.
- A.
2
- B.
3
- C.
6
- D.
1
- 18.In which situation is a chemical reaction occurring?
- A.
Salt dissolving in water
- B.
A nail rusting
- C.
Ice melting
- D.
A glass window breaking
- 19.
- A.
Reactants combining with products to produce a new substance
- B.
No chemical changes occurring
- C.
Physical changes taking place
- D.
Reactants combining to produce new substances
- 20.
- A.
A
- B.
B
- C.
C
- D.
D
- 21.Fossil fuels that contain carbon, such as coal, petroleum and natural gas, combine with oxygen to produce carbon dioxide gas and energy often in the form of heat. These processes are example of which type of reactions?
- A.
Endothermic reactions
- B.
Exothermic reaction
- C.
Metabolic reactions
- D.
Replacement reactions
- 22.What coefficient is needed in front of NH3 in order for the following equation to be balanced? N2 + H2 → NH3
- A.
2
- B.
3
- C.
4
- D.
5
- 23.Propane, C3H8 (g), burns in oxygen to form carbon dioxide and water. Which equation correctly shows this reaction? a. C3H8 + O2 → CO2 + H2O b. C3H8 + 5O2 → 3CO2 + 4H2O c. C3H8 + 5O2 → CO2 + 4H2O d. 2C3H8 + 5O2 → 3CO2 + 4H2O
- A.
A
- B.
B
- C.
C
- D.
D
- 24.In which situation is a chemical reaction occurring?
- A.
Salt dissolving in water
- B.
A nail rusting
- C.
Ice melting
- D.
a glass window breaking
- 25.
- A.
1
- B.
2
- C.
3
- D.
4
- 26.Fossil fuels that contain carbon, such as coal, petroleum and natural gas, combine with oxygen to produce carbon dioxide gas and energy often in the form of heat. These processes are example of which type of reactions?
- A.
Endothermic reactions
- B.
Exothermic reaction
- C.
Metabolic reactions
- D.
Replacement reactions
- 27.All of the following are biological polymers except –
- A.
Proteins
- B.
Petroleum
- C.
Lipids
- D.
DNA
- 28.All of the following are biological polymers except –
- A.
Proteins
- B.
Petroleum
- C.
Lipids
- D.
DNA
- 29.What are the small units that make up polymers called?
- A.
Monomers
- B.
Plastics
- C.
Isomers
- D.
Proteins
- 30.A hydrocarbon is composed of –
- A.
Carbons only
- B.
Carbon, hydrogen, and other atoms
- C.
Carbon and hydrogen only
- D.
Carbon plus a variety of other elements
- 31.What can a polar molecule dissolve?
- A.
Any solute
- B.
A nonpolar solute
- C.
A polar solute
- D.
No solute
- 32.If a water solution conducts electricity, what must the solute be?
- A.
Solid
- B.
Liquid
- C.
Electrolyte
- D.
Nonelectrolyte
- 33.All of the following speed up the dissolving process except _______.
- A.
Stirring the solution
- B.
Increasing the size of the solid to be dissolved
- C.
Increasing the temperature of the solvent
- D.
Crushing the solid to be dissolve
- 34.
- A.
A
- B.
B
- C.
C
- D.
D
- 35.Which is NOT an element?
- A.
He
- B.
N
- C.
NaCl
- D.
Mg
- 36.What is the atomic mass of the element cadmium (Cd)?
- A.
112
- B.
64
- C.
48
- D.
96
- 37.How many electrons does an atom of the element mercury (Hg) have?
- A.
12
- B.
121
- C.
80
- D.
201
- 38.What is the mass of an atom with 8 protons, 7 neutrons, and 8 electrons?
- A.
15 amu
- B.
7 amu
- C.
8 amu
- D.
23 amu
- 39.Which of the following has six valence electrons?
- A.
Beryllium
- B.
Carbon
- C.
Oxygen
- D.
Neon
- 40.Which process results in the tremendous energy given off by the Sun?
- A.
Combustion
- B.
Nuclear decay
- C.
Nuclear fission
- D.
Nuclear fusion
- 41.LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M1V1 = M2V2)
- A.
100 ml
- B.
1000 ml
- C.
350 ml
- D.
250 ml
- 42.LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M1V1 = M2V2)
- A.
100 ml
- B.
1000 ml
- C.
350 ml
- D.
250 ml
- 43.LAB / What volume of water must be added to 250ml of 7M HCl to produce 5M HCl? (Hint: M1V1 = M2V2)
- A.
100 ml
- B.
1000 ml
- C.
350 ml
- D.
250 ml
- 44.
- A.
37.0 g
- B.
58.0 g
- C.
129.0
- D.
104 g
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