Name:________________________ Class:______________ Date:________
Ch. 2 - Movie Special Effects V.1 Page 1
___ 1. A gas is best described as having an indefinite shape and an indefinite volume.
a. true
b. false
A
strontium
chloride
solution
produces
a
red
color
when
heated.
The amount of heat energy required to raise an
___ 2.
electron to a higher energy state is equal to the amount of energy given off as red light when the electron returns
to its normal resting state.
a. true
b. false
Which
one
of
the
following
mixtures
is
classified
as
a
suspension?
___ 3.
a. sugar water
c. water
___
4.
b. orange juice
d. olive oil
Which one of the following will show the Tyndall Effect?
a. oxygen gas
c. water
___
5.
b. fog
d. sugar water
You have determined the density of a beaker of sand. What will happen to the density if you pour the sand into a
larger empty beaker?
a. It will become less.
b. It will remain the same.
c. Unable to determine without knowing the volume of the beaker.
d. It will become greater.
___
6.
Ceramics are classified as:
a. metals.
c. metal oxides.
___
7.
b. nonmetal oxides.
d. nonmetals.
When metals react with the oxygen in air, it is called:
a. reduction.
c. oxidation.
___
8.
b. combustion.
d. phlogiston.
It has been observed that when wooden splints are soaked in different metal salt solutions and then placed in a
Bunsen burner flame, they give a certain color flame. Which of the following provides an explanation of what is
taking place?
The metal electrons are being transferred to the methane gas. Since each metal has a different number of electrons, this causes the
a. flame to be a certain color.
b. Metal electrons that are excited will emit colored light when they fall to a lower energy level.
c. The flame is the same color as the salt solution being investigated.
d. Metal electrons give off light when excited to a higher energy level.
___ 9. We know that when you squeeze orange peels, you produce ethylene gas. This organic compound is classified as
a(an):
a. carbohydrate.
c. amino acid.
___
10.
b. hydrocarbon.
d. alcohol.
In the electrolysis of water, it is noted that two gases are collected. What are the gases and ratio of the collected
gases?
a. oxygen and hydrogen (2:1)
b. hydrogen and oxygen (1:1)
c. oxygen and hydrogen (1:1)
d. hydrogen and oxygen (2:1)
___
11.
Which one of the following contains three significant digits?
a. 0.07
b. 3.007
c. 4.01
d. 720
___ 12. It was found that a gold sample that occupied a volume of 20.3 cubic centimeters had a mass of 392 grams.
Determine the density of gold to the correct number of significant digits.
a. 0.0518 cm3/g
b. 0.05179 cm3/g
c. 19.3 g/cm3
d. 19.31 g/cm3
Page 2
___
13.
The molecular formula for a hydrocarbon is C4H6. Which one of the following structures cannot be this
hydrocarbon?
a. CH2=CH-CH=CH2
b. CH3-CH=C=CH2
c. CHC-CH2CH3
d. CH-C-CH=CH2
___
14.
As ice is melting:
a. the temperature of the ice is increasing.
b. the temperature of the system remains the same.
c. the potential energy of the ice is decreasing.
d. the kinetic energy of the ice is increasing.
___
15.
Solid carbon dioxide (dry ice) at room temperature will go from a solid to a gas. This is called:
a. the heat of fusion.
c. condensation.
___
16.
A gold statue that has a mass of 79,200 grams is to be used in a movie scene. You are asked to make a replica
statue that is much lighter than the gold statue. You decide that you will make it out of aluminum and spray paint
it with gold paint. What will the mass of your replica statue be? Assume that the gold paint mass is insignificant
in this problem. The densities of gold and aluminum are 19.3 g/cm3 and 2.70 g/cm 3, respectively.
a. 12,100 g
c. 812 g
___
17.
b. sublimation.
d. dissolution.
b. 11,100 g
d. 566,000 g
A sample of liquid water has a mass of 114 grams and a density of 1.00 grams per cubic centimeters. What is the
volume of the water sample?
a. 0.0088 cm3
b. 114 cm3
c. 1.14 cm3
d. 11.4 cm3
___
18.
The graph below shows a heating-cooling curve for a substance. During which segment is the substance
boiling?
a. segment DE
b. segment AB
c. segment BC
d. segment EF
___ 19. The graph below shows a heating-cooling curve for a substance. During which segment is the substance
melting?
a. segment AB
b. segment EF
c. segment BC
d. segment DE
Page 3
___
20.
The graph below shows a heating-cooling curve for a substance. During which segment is the substance in the
gas phase?
a. segment DE
b. segment AB
c. segment EF
d. segment BC
___ 21. Which substance represents a compound?
a. CO2
b. Co
c. C
d. O2
___
22.
Which grouping of the three phases of chlorine is listed in order from left to right for increasing distance
between chlorine molecules?
a. solid, liquid, gas
c. gas, liquid, solid
___
23.
b. solid, gas, liquid
d. liquid, solid, gas
Which statement concerning elements is correct?
a. Different elements must have different numbers of isotopes.
b. Different elements must have different numbers of neutrons.
c. All atoms of the same element must have the same atomic number.
d. All atoms of the same element must have the same mass number.
___
24.
Which process below represents a chemical change?
a. crystallization of sugar
b. corrosion of copper
c. melting of ice
d. evaporation of water
___
25.
The graph below shows a heating curve for a substance. Which line segments represent an increase in the
average kinetic energy of the substance?
a. segments DE and EF
b. segments AB and CD
c. segments AB and BC
d. segments BC and DE
___ 26. A student calculates the density of an unknown solid. The mass is 10.04 grams and the volume is 8.21 cubic
centimeters. How many significant figures should appear in the final answer?
a. 1
b. 2
c. 3
d. 4
___ 27. A student calculates the density of an unknown solid. The mass is 10.040 grams and the volume is 8.210 cubic
centimeters. How many significant figures should appear in the final answer?
a. 1
b. 2
c. 4
d. 3
Page 4
___
28.
The diagram below shows two samples, A and B, containing molecules at standard temperature and pressure.
Which statement is correct?
a. The particles in sample A have more potential energy than the particles in sample B.
b. The particles in sample A have more kinetic energy than the particles in sample B.
c. The particles in sample B have more potential energy than the particles in sample A.
d. The particles in sample A have the same average kinetic energy as the particles in sample B.
___
29.
The diagram below shows a sample containing molecules at standard temperature and pressure. Which statement
best describes the sample?
a. The sample consists of a single element.
b. The sample consists of a single pure substance.
c. The sample consists of a mixture of gases.
d. The sample consists of a single compound.
___
30.
The diagram below shows a sample containing molecules at standard temperature and pressure. Which of the
following could possibly make up the sample?
a. HCl and H2O
b. F 2 and HCl
c. H2O and F 2
d. NH3 and I2
___
31.
An unknown solid has the following characteristics: brittle, lacks luster, and is a poor conductor of heat and
electricity. How should the substance be classified?
a. pure substance
c. nonmetal
___
32.
b. metal
d. metalloid
Conductivity in a metal results from the metal atoms having:
a. high electronegativity.
b. high ionization energy.
c. highly mobile electrons in the valence shell.
d. highly mobile protons in the nucleus.
___
33.
How could the salt from a mixture of salt and water best be recovered?
a. evaporation
b. paper chromatography
c. filtration
d. density determination
Page 5
___
34.
The average kinetic energy of ammonia particles is greatest in which of these samples?
a. 100 g of ammonia at 25 °C
b. 100 g of ammonia at 45 °C
c. 10 g of ammonia at 35 °C
d. 10 g of ammonia at 55 °C
___
35.
Which sample contains particles in a rigid, fixed geometric pattern?
a. CO2 (aq)
b. H2O (l)
c. HCl (g)
d. KCl (s)
___
36.
Which element must be present in an organic compound?
a. nitrogen
c. carbon
___
37.
b. oxygen
d. hydrogen
The table below shows the solubility of a solid solute. As the temperature increases:
Temperature
(°C)
Solute per 100
grams of H 2O
0
18
20
20
40
24
60
29
80
36
100
49
a. the solubility of the solute decreases.
b. the amount of solvent required to dissolve a given amount of solute decreases.
c. the solubility of the solute remains the same.
d. the amount of solvent required to dissolve a given amount of solute increases.
___
38.
How should a pepperoni pizza be classified?
a. as a pure substance
b. as a suspension
c. as a heterogeneous mixture
d. as a homogeneous mixture
___
39.
Which is the name of the process in which a substance in the solid phase goes directly into the gas phase without
passing through the liquid phase?
a. deposition
c. boiling
___
40.
b. sublimation
d. evaporation
Which arrangement correctly orders mixtures in terms of increasing particle size?
a. colloid, solution, suspension
b. solution, suspension, colloid
c. solution, colloid, suspension
d. colloid, suspension, solution
___
41.
A 100-gram vinegar solution contains 5 grams of acetic acid. Which is the solution's concentration in percent or
parts per hundred?
a. 5%
b. 50%
c. 0.05%
d. 0.5%
Page 6
___
42.
The melting and boiling points of copper are 1083 °C and 2336 ° C, respectively. In what phase would copper
be expected to be at standard temperature and pressure?
a. solid
c. gas
___
43.
b. plasma
d. liquid
A beam of light is scattered when passed through a mixture. How should the mixture be classified?
a. as being heterogeneous
b. as a colloid
c. as a solution
d. as a suspension
___
44.
A mixture is red and transparent to light. How should the mixture be classified?
a. as being heterogeneous
b. as a colloid
c. as a solution
d. as a suspension
___
45.
The diagram below shows a liquid in a graduated cylinder. What is the volume of the liquid?
a. 65.0 mL
b. 65.00 mL
c. 65.5 mL
d. 60.50 mL
___
46.
A graduated cylinder holds 125 milliliters of water. A rock is dropped in, sinks completely to the bottom of the
cylinder, and the volume of the water now reads 235 milliliters. What is the volume of the rock?
a. 360 mL
c. 235 mL
___
47.
b. 110 mL
d. 125 mL
Which of the following is classified as a non-Newtonian liquid?
a. ketchup
c. gasoline
___
48.
b. water
d. ethanol
A wooden splint soaked with potassium chloride solution produces a purple color when placed in the flame of a
Bunsen burner. The Bunsen burner provides the:
a. energy for combustion.
b. energy to move electrons in the nonmetal ion to a lower energy level.
c. energy to move electrons in the metal ion to a higher energy level.
d. energy to move electrons in the metal ion to a lower energy level.
___
49.
How many chemical bonds can one carbon atom make?
a. 2
b. 1
c. 4
d. 3
___ 50. Which of the following is classified as a compound?
a. CO2(g)
b. Cl2(g)
c. I2(s)
d. H2(g)
___
51.
List four physical properties that can be used to differentiate between aluminum and sulfur.
___
52.
What is a difference between an element and a compound?
Page 7
___
53.
How are elements and compounds alike?
___
54.
Most plastic containers, such as those for milk and butter, are not very chemically reactive. Name and describe
an implication of the plastic's behavior.