1- Apple juice is an example of a(an)

a. element
b. compound
c. homogenous mixture
d. heterogenous mixture

c. homogenous mixture

2- Which of the following is not a pure substance?

a. water
b. carbon dioxide
c. carbon
d. air

d. air

3- Solutions may be
a. solids
b. liquids
c. gases
d. All of the above

d. All of the above

4- Descriptions of a sample that are based on the amount of substance are

called
a. physical properties
b. chemical properties
c. intensive properties
d. extensive properties

d. extensive properties

5-Properties that describe the way a substance reacts to form other

substances are called
a. physical properties
b. chemical properties
c. homogenous properties
d. heterogenous properties
b. chemical properties
6-Acetic acid that was liquid when stored was solid when a student looked
for it on a cold morning. This illustrates
a. a change in solubility
b. a chemical change
c. an equilibrium state
d. a physical change
d. a physical change

7-A copper wire placed in a silver nitrate solution turns dark and "fuzzy".
This illustrates
a. an accident
b. a chemical reaction
c. an extensive property
d. a physical change
b. a chemical reaction

8-Which statement explains the difference between a scientific law (X) and
a scientific theory (Y)?
a. X is proven; Y is not proven
b. X is not proven; Y is proven
C. X tells what happens; Y explains why things happen
d. X explains why things happen; Y tells what happens
c. X tells what happens; Y explains why things happen

9-When nitric acid is mixed with copper metal, a brown gas forms. This is
an example of
a. an accident
b. a chemical reaction
c. a physical property
d. an extensive property

b. a chemical reaction

10-A solution with a boiling point of 105 degrees Celsius contains either
sugar or salt. How would you determine which is present?
a. distill the solution
b. filter the solution
c. use chromatography
d. taste the solution
a. distill the solution

11-Heat flows from an object

a. at high temperature to an object at low temperature
b. at low temperature to an object at high temperature
c. to another object at the same temperature
d. at high elevation to an object at low elevation
a. at high temperature to an object at low temperature

12-In three trials, a student measures a sample's mass to be to be 0.100 g,

0.600 g, and 0.300 g. The accepted value is 0.340 g. The student's data have
a. good accuracy and good precision
b. good accuracy, but poor precision
c. poor accuracy, but good precision
d. poor accuracy and poor precision
b. good accuracy, but poor precision

13-The measured quantity 0.860 g contains _____ significant figures

a. three
b. four
c. five
d. six
a. three

14- 4.1 g + 7.08 g = ____ g

a. 11.180
b. 11.18
c. 11.2
d. 11
c. 11.2

15- 6.9 g - 5.07 g = ____ g

a. 1.830
b. 1.83
c. 1.8
d. 1
c. 1.8

16- 5.2 cm x 7.01 cm = ____ cm^2

a. 36
b. 36.4
c. 36.45
d. 36.452
a. 36

17- 6.03 g / 7.1 mL = ____ g/mL

a. 0.8
b. 0.85
c. 0.849
d. 0.849257
b. 0.85

18- 120 mL = ____ fl oz

a. 2
b. 4
c. 6
d. 8
b. 4

19- A temperature of -40 degrees Celsius is the same as (X) degrees

Fahrenheit and (Y) kelvins
a. X = -40, Y = 233
b. X = 233, Y = -40
c. X = 10, Y = 233
d. X = 233, Y = 10
a. X = -40, Y = 233

20-Which measurements is expressed in non-SI units?

a. 12.9 Angstroms (Å)
b. 47.2 milliliters (mL)
c. 16.8 kilograms (kg)
d. 42.6 micrometers (μ)
a. 12.9 Angstroms (Å)

21- Which unit is not an SI base unit?

a. kilogram
b. degree Celsius
c. meter
d. second
b. degree Celsius

21-The nucleus of an atom contains

a. protons and neutrons
b. protons and electrons
c. electrons and neurons
d. protons, neutrons, and electrons
a. protons and neutrons
Two atoms with the same atomic number but different mass numbers are
called
a. mutants
b. isomers
c. isotopes
d. symbiots

c. isotopes

Select the INCORRECT statement about the mass and volume of an atom
a. The mass is determined mostly by the protons and neutrons
b. The volume is mostly empty space
c. The mass is concentrated by the nucleus
d. The volume is determined by the arrangement of the protons

d. The volume is determined by the arrangement of the protons

For an atom of fluorine, the atomic number is ____ and the average atomic
mass is ____

a. 9; 18.988 amu
b. 18.998; 9 amu
c. 10; 19 g
d. 9; 9 g

a. 9; 18.988 amu

Atomic weights on the periodic table are decimal numbers instead of

integers because

a. the number of protons + neutrons determines atomic weight

b. of the existence of isotopes
c. of the very small mass of electrons compared to protons and neutrons
d. the number of protons + electrons determines atomic weight

b. of the existence of isotopes

The elements found on the right side to the periodic table tend to ____
electrons
a. gain
b. lose
c. keep
d. share

a. gain
Metals and nonmetals react to form ________ compounds
a. molecular
b. mixed
c. empirical
d. ionic

d. ionic

Positive ions are called

a. positrons
b. anions
c. cations
d. nucleons
c. cations

Compounds composed only of carbon and hydrogen are called

a. binary acids
b. carbohydrates
c. hydrocarbons
d. alkanes
c. hydrocarbons

The elements located in Group VIIA (Group 17) on the periodic table are
called

a. alkali metals
b. noble gases
c. chalcogens
d. halogens
d. halogens
Which of the formulas below does not represent a compound that actually
exists?

a. CaCO3
b. H202
c. KMnO4
d. Na2PO3
d. Na2PO3
Which name is INCORRECTLY paired with the formula?

a. hydroxide ion; OH-

b. barium (II) chloride; BaCl2
c. ammonia; NH3
d. sulfur dioxide; SO2
b. barium(II) chloride; BaCl2

Acids produce ____ ions

a. OH-1
b. OH+1
c. H+1
d. H-1

c. H+1

NaOCL is named
a. sodium chlorate
b. sodium chlorite
c. sodium perchlorate
d. sodium hypochlorite

d. sodium hypochlorite

LiNO3 is named
a. lithium nitrate
b. lanthanum nitrate
c. lanthanum nitirite
d. lithium nitrite

a. lithium nitrate

The formula for aluminum carbonate is

a. Al2(CO3)3
b. AlCO3
c. Al2C3
d. Al3(CO3)2

a. Al2(CO3)3

Fe2O3 is named
a. diiron trioxide
b. iron (III) oxide
c. ferrous oxide
d. ironic oxide

b. iron (III) oxide

Which acid is not an oxyacid?

a. hydrochloric acid
b. nitric acid
c. sulfurous acid
d. acetic acid

a. hydrochloric acid

HIO4 is named
a. iodic acid
b. idols acid
c. periodic acid
d. hydrogen iodate

c. periodic acid

Cl2O7 is named
a. chlorine (VII) oxide
b. dichloride hexaoxide
c. dichlorine heptaoxide
d. bichlorine heptaoxide

c. dichlorine heptaoxide

C3H8 is named
a. ethane
b. propane
c. propanol
d. pentane

b. propane

For the reaction X ---> Y, X is referred to as the

a. yield
b. reactant
c. product
d. coefficient

b. reactant

Hydrocarbons burn to form

a. H2O and CO2
b. charcoal
c. methane
d. O2 and H2O

a. H2O and CO2

C6H6 + O2 ---> CO2 + H2O
When this equation is correctly balanced, the coefficients are
a. 1, 7 --> 6, 3
b. 1, 8 --> 6, 3
c. 2, 15 --> 12, 6
d. 2, 16 --> 12, 6

c. 2, 15 --> 12, 6

2 NaN3 --> 2 Na + 3 N2
This is an example of a ________ reaction
a. decomposition
b. combination
c. combustion
d. replacement

a. decomposition

The formula weight of any substance is also known as

a. Avogadro's number
b. atomic weight
c. density
d. molar mass

d. molar mass

The formula weight of Na3PO4 is ______ grams per mole

a. 70
b. 164
c. 265
d. 116

b. 164

The percentage by mass of phosphorus in Na3PO4 is

a. 44.0
b. 11.7
c. 26.7
d. 18.9
d. 18.9
One millionth of one mole of noble gas = ____ atoms
a. 6.02 x 10^17
b. 6.02 x 10^20
c. 6.02 x 10^14
d. Atoms are too small to count
a. 6.02 x 10^17

Ethanol contains 52.2% carbon, 13.0% hydrogen, and 34.8% oxygen by

mass. The empirical formula of ethanol is
a. C2H5O2
b. C2H6O
c. C2H6O2
d. C3H4O2

b. C2H6O

Ribose has a molecular weight of 150 grams per mole and the empirical
formula CH2O. The molecular formula of ribose is
a. C4H8O4
b. C5H10O5
c. C6H14O4
d. C6H12O6

b. C5H10O5

When 3.14 g of Compound X is completely combusted, 6.91 g of CO2 and

2.26 g of H2O form. The molecular formula of Compound X is
a. C7H16
b. C6H12O
c. C5H8O2
d. C4H4O3

c. C5H8O2

C6H6 + 2Br2 --> C6H4Br2 + 2 HBr

When 10.0 g of C6H6 and 30.0 g of Br2 react as shown above, the limiting
reactant is
a. Br2
b. C6H6
c. HBr
d. C6H4Br2

a. Br2

2Fe + 3 Cl2 --> 2FeCl3

When 10.0 g of iron and 20.0 g of chlorine react as shown, the theoretical
yield of FeCl3 is
a. 10.0 g
b. 20.0 g
c. 29.0 g
d. 30.0 g
c. 29.0 g

The percentage yield of a reaction is 100% x (Z), where Z is

a. theoretical yield/actual yield
b. calculated yield/actual yield
c. calculated yield/theoretical yield
d. actual yield/theoretical yield

d. actual yield/theoretical yield

C3H4O4 + 2C2H6O --> C7H12O2 + 2H2O

When 15.0 g of each reactant was mixed, 15.0 g of C7H12O2 formed. The
percentage yield of this product is
a. 100%
b. 75%
c. 65%
d. 50%

c. 65%

A homogenous mixture of two or more components is referred to as

a. a solute
b. a solution
c. an electrolyte
d. a mess

b. a solution

The solvent in a sample of soda pop is

a. sugar
b. carbon dioxide
c. water
d. air

c. water

The gaseous solute in a sample of soda pop is

a. sugar
b. carbon dioxide
c. water
d. air

b. carbon dioxide
Gatorade and other sports drinks conduct electricity because they contain
a. water
b. sugar
c. air
d. electrolytes

d. electrolytes

When Fe(NO3)2 dissolves in water, the particles in solution are

a. Fe+ and (NO3)2-
b. Fe2+ and 2NO3-
c. Fe and 2NO3
d. Fe and N2 and 3O2

b. Fe2+ and 2NO3-

Which set includes only substances that produce electrolytes in water?

a. NaBr, KCl, MgSO4
b. C6H12O6, CH3OH, C6H6
c. HCl, NH3, Cl2, N2
d. SiO2, CaCO3, H2SO4

a. NaBr, KCl, MgSO4

Which compound below is not soluble in water?
a. NaBr
b. KNO3
c. MgSO4
d. ZnS

d. ZnS

Pb(NO3)2 + 2KI --> PbI2 + 2KNO3

The physical evidence that the above reaction occurs is
a. an explosion
b. the formation of a gas
c. that the solution boils
d. the formation of a precipitate

d. the formation of a precipitate

Which pair of compounds will produce a precipitate if solutions of

appropriate concentrations are mixed together?

a. H2SO4 and NaOH

b. HNO3 and CaCl2
c. Ba(NO3)2 and Na3PO4
d. LiCl and SrI2

c. Ba(NO3)2 and Na3PO4

When an acid reacts with a base, the result is

a. cancellation
b. elimination
c. neutralization
d. adduct formation

c. neutralization

When nitric acid is neutralized by potassium hydroxide, the spectator ions

are
a. K+ and NO3-
b. H+ and OH-
c. H+ and NO3-
d. K+ and OH-

a. K+ and NO3-

Which compound below is not a strong acid?

a. HC2H3O2
b. H2SO4
c. HNO3
d. HBr

a. HC2H3O2

When an atom undergoes oxidation, it _____ electrons

a. gains
b. loses
c. retains
d. balances

b. loses

When an atom undergoes reduction, it _____ electrons

a. gains
b. loses
c. retains
d. balances

a. gains
When Zn(s) reacts with HCl(aq) to produce H2(g) and ZnCl2(aq), the zinc is
_____ because it _____ electrons
a. reduced; gains
b. reduced; loses
c. oxidized; gains
d. oxidized; loses

d. oxidized; loses

Al + H+ --> Al+3 + H2
When the oxidation-reduction reaction above is correctly balanced, the
coefficients are
a. 1,2 --> 1,1
b. 1,3 --> 1,2
c. 2,3 --> 2,3
d. 2,6 --> 2,3

d. 2,6 --> 2,3

In the list shown, the metal that is most easily oxidized is _____
a. Li
b. Ca
c. Fe
d. Cu

a. Li

A solution is prepared by dissolving 35.0 g of NaCl in water to make 500 mL

of solution. What is the molarity?
a. 7.00 M
b. 3.04 M
c. 1.97 M
d. 1.20 M

d. 1.20 M

250.0 mL of 0.100 M AgNO3 solution contains _____ g of silver nitrate

a. 4.25
b. 8.50
c. 17.0
d. 34.0

a. 4.25

To make 250.0 mL of 0.500 M KI solution, _____ mL of 6.00 M KI must be

used
a. 20.8
b. 41.7
c. 500.0
d. 3000.0

a. 20.8

HCl + KOH --> KCl + H20

25.00 mL of HCl was titrated using 18.50 mL of 0.1554 M NaOH. The
concentration of HCl is
a. 0.0777 M
b. 0.1150 M
c. 0.2100 M
d. 0.2875 M

b. 0.1150 M

HX + NaOH --> NaX + H2O

229 mg of HX was titrated using 29.33 mL of 0.0965 M NaOH. What is
element X?
a. F
b. Cl
c. Br
d. I

c. Br