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Module 5 - States Of Matter: What State Is It In?
Test Description: Module 5, FLVS Science 3
Instructions: Answer all questions to get your test result.
1) Observing the mass of the products and reactants in a reaction, you would notice that...
A
the mass of the reactants is always greater.
B
the mass of the products is equal to the mass of the reactants
C
the mass of the product is always greater.
D
the mass of the products may be greater or less than the mass of the reactants.
2) To follow the Law of Conservation of Energy, a reaction...
A
will have more energy at the beginning of the reaction than at the end.
B
will have more energy at the end of the reaction than at the beginning.
C
will have the same amount of energy at the end of than there is at the beginning.
D
will have less energy at the end of the reaction than the beginning.
3) During an exothermic reaction, the energy given off...
A
comes from the breaking and forming of bonds.
B
comes from mass being created.
C
comes from mass being burned into energy.
D
comes from atoms being consumed.
4) When energy is needed to break the original bonds, a(n) _________________ reaction has occured.
A
exothermic
B
nuclear
C
dynamic
D
endothermic
5) When molecules are moving from a more condensed to a less condensed state of matter, _________________ occurs.
A
freezing
B
evaporating
C
solidifying
D
condensing
6) Changing from a less condensed state of matter, to a more condensed stat of matter is an example of:
A
evaporation
B
solidifying
C
boiling
D
freezing
7) In which state of matter are particles vibrating and moving at higher speeds?
A
gas
B
solid
C
plasma
D
liquid
8) The process of converting a gas to a liquid is called ______________.
A
evaporation
B
condensation
C
sublimation
D
deposition
9) The states of matter from least condense, to most condense are:
A
liquid, solid, gas
B
gas, solid, liquid
C
gas, liquid, solid
D
solid, liquid, gas
10) When a reaction occurs, the thermometer in the container records a decrease in temperature, because...
A
the reaction is endothermic because heat was released by the reaction
B
the reaction is exothermic because heat was released by the reaction
C
the reaction is endothermic because heat was taken in by the reaction
D
the reaction is exothermic because heat was taken in by the reaction
11) A solid is ______________ condensed than a liquid.
A
half as
B
less
C
equally
D
more
12) All of the following are examples of exothermic reactions, except:
A
freezing
B
condensation
C
melting
D
solidifying
13) When a physical or chemical changes takes place, where heat energy is taken in, it is a(n) ________________________ process.
A
energetic
B
exothermic
C
chemical
D
endothermic
14) When a ________________ change occurs, new compounds are formed.
A
chemical
B
physical
C
nuclear
D
phase
15) When the properties of matter do not change the identity of the substance, a(n) _______________ process has occured.
A
chemical
B
phase
C
nuclear
D
physical
16) These are all examples of phase changes, except ___________.
A
covalent
B
condensing
C
melting
D
freezing
17) All of these are examples of chemical changes, where bonds are breaking and forming, except...
A
boiling water
B
frying eggs
C
burning wood
D
fence rusting
18) Which one is an example of a physical change?
A
reacting baking soda with vinegar
B
rusting a nail
C
cutting the lawn
D
baking a cake
19) What phase of matter has no fixed volume and no fixed shape, and is the only one that can be condensed?
A
solid
B
liquid
C
plasma
D
gas
20) During a chemical reaction, energy is ...
A
converted from one form to another
B
created by the reaction
C
used up by the chemical reaction
D
burned up by the reaction
*select an answer for all questions
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