Chemistry: Matter and Change

Chapter 3: Matter - Properties and Changes

Chapter Test Practice

1
Which of the following is a vapor?

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A)helium
B)hydrogen
C)oxygen
D)steam
2
A characteristic that can be observed or measured without changing the sample's composition is ________________.
A)a chemical property
B)a physical property
C)a gaseous property
D)a crystalline property
3
A(n) ____________ is a transition from one state of matter to another.

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A)chemical change
B)phase change
C)extensive property
D)intensive property
4
In the chemical reaction shown above, what is the beginning mass of mercuric oxide?

2HgO (? Grams) → 2Hg (200 grams) + O2 (16 grams)
A)184 grams
B)200 grams
C)16 grams
D)216 grams
5
A heterogeneous mixture is poured through a piece of filter paper that is positioned over a beaker. What is the substance that is collected in the beaker?

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A)heterogeneous mixture
B)solid
C)solution
D)Not enough information is given.
6
________ is a separation technique that produces highly pure solids.
A)crystallization
B)sublimation
C)chromatography
D)filtration
7
A solution of solids is a(n)___________.
A)filtration
B)alloy
C)pure metal
D)heterogeneous mixture
8
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In the figure above, the volume of hydrogen gas is twice the volume of oxygen gas. What is the mass relationship between hydrogen and oxygen gas?
A)The hydrogen gas is twice as massive as the oxygen gas.
B)The hydrogen gas is half as massive as the oxygen gas.
C)More information is required.
D)There is no relationship because gasses have no mass.
9
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Consider the table above. In a sample of 100.0 grams of sucrose, what would be the expected mass of hydrogen?
A)42.20 grams
B)51.30 grams
C)6.50 grams
D)100.0 grams
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