Perform the indicated operations and give the answer in cm with the proper number of significant figures: 12.64cm - 48mm + 0.246m = ?

1.   ?    32.44
2.   ?    60.886
3.   ?    42.0
4.   ?    32.4
5.   ?    42

Which one of the following does not represent a chemical property?

1.   ?    burning of gasoline
2.   ?    stability of gold
3.   ?    rusting of iron in air
4.   ?    shock sensitivity of nitroglycerin
5.   ?    conductivity of copper

Which measurement is expressed using 3 significant figures?

1.   ?    0.0232kg
2.   ?    34.20cm
3.   ?    68.003g
4.   ?    10.500m
5.   ?    222.0km

A 600.mL container has what volume in fluid ounces? (1L = 1.06qt)(1qt = 32 fl. oz.)

1.   ?    18.1
2.   ?    0.0199
3.   ?    20.4
4.   ?    0.0177
5.   ?    33.7

Convert 1.39ft/s to meters per minute. (1m = 39.37in)

1.   ?    1520
2.   ?    305
3.   ?    2.12
4.   ?    7.68
5.   ?    25.4

The density of gold is 19.3g/cm³. A 3.4mg piece of gold is hammered into a square that is 8.6x10^-6cm thick. What is the length of a side of the square, in cm?

1.   ?    0.020
2.   ?    87
3.   ?    4.5
4.   ?    143
5.   ?    39

Gasoline in the United States costs $1.749 per gallon. Elsewhere, the cost is typically reported in dollars per liter. What is the cost in dollars per liter? (1ga = 4qt; 1.057qt =1L)

1.   ?    6.618
2.   ?    0.4373
3.   ?    0.4622
4.   ?    1.749
5.   ?    0.2311

A chlorine-oxygen compound is found to have a chlorine to oxygen mass ratio of 1.109. Which of the following chlorine to oxygen mass ratios is possible for a different chlorine-oxygen compound?

1.   ?    1.000
2.   ?    1.214
3.   ?    2.428
4.   ?    4.437
5.   ?    5.014

An ⁵⁶Fe²⁺ particle contains

1.   ?    28 protons, 28 neutrons and 26 electrons
2.   ?    26 protons, 30 neutrons and 24 electrons
3.   ?    26 protons, 26 neutrons and 26 electrons
4.   ?    58 protons, 58 neutrons and 56 electrons
5.   ?    54 protons, 56 neutrons and 52 electrons

Naturally occurring bromine consists of two isotopes: bromine-79 and bromine-81. The atomic mass for bromine is approximately 80. What are reasonable estimates of the relative percentages of Br-79 and Br-81, respectively?

1.   ?    10, 90
2.   ?    25, 75
3.   ?    50, 50
4.   ?    75, 25
5.   ?    90, 10

Whose name is associated with the invention of the periodic table?

1.   ?    Antoine Lavoisier
2.   ?    John Dalton
3.   ?    Albert Einstein
4.   ?    Dmitri Mendeleev
5.   ?    Joseph Proust

Which name is incorrect?

1.   ?    MgS magnesium monosulfide
2.   ?    FeCl₃ Iron(III)chloride
3.   ?    Ca₃N₂ calcium nitride
4.   ?    Li₂O lithium oxide
5.   ?    HBr Hydrogen bromide

Which one of the following compounds is ionic?

1.   ?    SF₆
2.   ?    MgO
3.   ?    SOCl₂
4.   ?    HNO₃
5.   ?    SeCl₂

Select the proper systematic name for the following compound:
CH₃CH₂CH(CH₃)CH(OH)CH₃

1.   ?    3-methyl-4-pentanol
2.   ?    2-hexanol
3.   ?    3-ethyl-2-butanol
4.   ?    3-methyl-2-pentanol
5.   ?    3-methyl-2-hexanol

Predict the product formed when calcium, Ca, combines with arsenic, As.

1.   ?    Ca₃As₂
2.   ?    Ca₂As₃
3.   ?    CaAs
4.   ?    CaAs₂
5.   ?    Ca₂As