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Chemical Vs Physical Properties 2
Test Description: Answer the review questions and fill out your study guide.
Instructions: Answer all questions to get your test result.
1) How will the mass of a rusted iron nail compare with the mass of the same nail before it rusted?
A
The unrusted nail with have the greater mass.
B
The two masses will be the same.
C
The rusted nail will have the greater mass.
D
It depends on whether or not the nail has rusted all the way through.
2) What must occur for a process to be a chemical reaction?
A
The reactants and products will have different chemical properties.
B
The process must involve a change in volume.
C
There must be more products than reactants.
D
The process must involve a change in mass.
3) In the chemical reaction in which carbon, hydrogen and oxygen absorb heat and combine to form carbon dioxide and water which of the following is considered to be a reactant?
A
heat
B
water
C
oxygen
D
carbon dioxide
4) A measure of how much pulling, or tension, a material can withstand before breaking is-
A
tensile strenght
B
hardness
C
malleability
D
brittleness
5) An engineer is searching for a material to develop a new material to develop a new
A
low brittleness, high hardness, high elasticity
B
low elasticity, high brittleness
C
high brittleness, low hardness, low elasticity
D
high hardness, high elasticity, high brittleness
6) Rubber is unusual in that it shrinks or contracts when heated. Warming a rubber ball will-
A
decrease its density.
B
cause its volume to remain the same.
C
increase its density.
D
decress its mass
7) When you eat an apple, the process of digestion involves-
A
Phase change.
B
Chemical change only.
C
Physical change only.
D
Physical and chemical change.
8) In which of the following situations does water undergo a change in physical properties?
A
Water is broken down to yield H2 and O2.
B
(A) and (B) only
C
The neighbor\'s pond freezes over in winter.
D
The bathroom fills with steam when you take a hot shower.
9) Which of the following is a chemical property of water?
A
It is a colorless liquid.
B
It has a boling point of 100C.
C
Sugar dissolved in it.
D
It is composed of two hydrogen atoms and one oxygen atom.
10) Which of the following is a chemical change?
A
Rusting.
B
Cutting.
C
Bending.
D
Melting
*select an answer for all questions
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