Module 5 - States Of Matter: What State Is It In? Question Preview (ID: 20375)


Module 5, FLVS Science 3. TEACHERS: click here for quick copy question ID numbers.

Observing the mass of the products and reactants in a reaction, you would notice that...
a) the mass of the products is equal to the mass of the reactants
b) the mass of the products may be greater or less than the mass of the reactants.
c) the mass of the product is always greater.
d) the mass of the reactants is always greater.

To follow the Law of Conservation of Energy, a reaction...
a) will have less energy at the end of the reaction than the beginning.
b) will have the same amount of energy at the end of than there is at the beginning.
c) will have more energy at the end of the reaction than at the beginning.
d) will have more energy at the beginning of the reaction than at the end.

During an exothermic reaction, the energy given off...
a) comes from atoms being consumed.
b) comes from the breaking and forming of bonds.
c) comes from mass being created.
d) comes from mass being burned into energy.

When energy is needed to break the original bonds, a(n) _________________ reaction has occured.
a) nuclear
b) dynamic
c) exothermic
d) endothermic

When molecules are moving from a more condensed to a less condensed state of matter, _________________ occurs.
a) solidifying
b) freezing
c) condensing
d) evaporating

Changing from a less condensed state of matter, to a more condensed stat of matter is an example of:
a) freezing
b) boiling
c) evaporation
d) solidifying

In which state of matter are particles vibrating and moving at higher speeds?
a) gas
b) liquid
c) solid
d) plasma

The process of converting a gas to a liquid is called ______________.
a) evaporation
b) deposition
c) sublimation
d) condensation

The states of matter from least condense, to most condense are:
a) gas, liquid, solid
b) solid, liquid, gas
c) liquid, solid, gas
d) gas, solid, liquid

When a reaction occurs, the thermometer in the container records a decrease in temperature, because...
a) the reaction is exothermic because heat was released by the reaction
b) the reaction is endothermic because heat was released by the reaction
c) the reaction is exothermic because heat was taken in by the reaction
d) the reaction is endothermic because heat was taken in by the reaction

A solid is ______________ condensed than a liquid.
a) equally
b) half as
c) less
d) more

All of the following are examples of exothermic reactions, except:
a) solidifying
b) melting
c) condensation
d) freezing

When a physical or chemical changes takes place, where heat energy is taken in, it is a(n) ________________________ process.
a) chemical
b) exothermic
c) energetic
d) endothermic

When a ________________ change occurs, new compounds are formed.
a) physical
b) phase
c) chemical
d) nuclear

When the properties of matter do not change the identity of the substance, a(n) _______________ process has occured.
a) physical
b) phase
c) chemical
d) nuclear

These are all examples of phase changes, except ___________.
a) condensing
b) melting
c) covalent
d) freezing

All of these are examples of chemical changes, where bonds are breaking and forming, except...
a) boiling water
b) burning wood
c) frying eggs
d) fence rusting

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

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) gas
d) plasma

During a chemical reaction, energy is ...
a) created by the reaction
b) used up by the chemical reaction
c) converted from one form to another
d) burned up by the reaction

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