States Of Matter Question Preview (ID: 34148)


7th Grade. TEACHERS: click here for quick copy question ID numbers.

which of the following molecule is a hydrocarbon?
a) CH4
b) CO2
c) H2O
d) O2

Water is known as the universal _______ because it dissolves many things
a) solvent
b) solution
c) dissolver
d) suspension

which is true about elements and compounds?
a) elements are pure, while compounds have more than one element in them
b) they are both found on the periodic table
c) they are both pure substances
d) elements and compounds have more than one element in them

which of the following is an example of exothermic reaction?
a) burning wood
b) melting an ice cubee
c) boiling water
d) photosynthesis

which of the following is evidence that a chemical reaction has taken place
a) the presence of an odor after burning a sugar cube
b) the puddle after melting an ice cube
c) the production of a shard of glass after breaking a glass bottle
d) the loud noise from splitting an ionic compound

The law of conservation of mass states that
a) Mass stays the same even as something changes state, it is always conserved
b) that mass cannot always be determined
c) mass sometimes increases when the state of something changes
d) hydrocarbon

melting is this type of change
a) physical
b) chemical
c) long
d) short

boiling is this type of change
a) pysical
b) chemical
c) both physical and chemical
d) it depends on what is boiling

which of the following can speed up the rate of chemical reaction?
a) breaking out the reactant into smaller pieces
b) lowering temperature
c) removing the catalyst
d) lowering the reactant concentration

matter in a frozen state has
a) less energy
b) more energy
c) the same energy
d) no energy it is too cold

which is a chemical property of matter?
a) flammability
b) density
c) color
d) texture

in this type of reaction energy is released
a) exothermic
b) endothermic
c) nuclear fusion
d) nuclear radiation

the three most common states of matter
a) solid, liquid, gas
b) metal, nonmetal, metalloids
c) solid, suspension, colloid
d) colloid, suspension, solution

If you can see particles in a mixture it is probably a
a) suspension
b) solution
c) pure
d) water

matter in a gas state have much __________energy than matter in a solid state
a) more
b) less
c) of the same
d) greater

which is a chemical property of water?
a) water reacts with some metals (oxidation)
b) water freezes at 0 degrees C
c) water boils at 100 degrees C
d) the water's volume is 200mL

the measure of kinetic energy
a) temperature
b) mass
c) density
d) volume

this causes something to change state
a) temperature
b) smashing
c) crushing
d) eating

If you cannot see any particles and light can pass straight through, then it is probalbly this type of mixture
a) pure solution
b) a suspension
c) a colloid
d) water mixture

this is a property that only solids have
a) definite shape and volume
b) particles that are always in motion
c) particles that no longer move at all not even vibrate
d) has a definite shape

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