Unit 2 Test Review 2 Question Preview (ID: 44801)


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The particles in matter are constantly in motion.
a) True
b) False
c)
d)

A mixture that is evenly dispersed.
a) Homogenous
b) Heterogenous
c)
d)

A pure substance that cannot be broken down into anything simpler.
a) Element
b) Compound
c)
d)

Carbon is an example of....
a) A pure substance
b) A mixture
c)
d)

NaCl table salt is made of Na and Cl. This is an example of...
a) A pure substance
b) A mixture
c) A compound
d)

When sugar dissolves into water.
a) A pure substance
b) A mixture
c)
d)

When something reacts with oxygen.
a) Chemical
b) Physical
c)
d)

Density
a) Physical Property
b) Chemical Property
c)
d)

The resistance of a substance to flow.
a) Viscosity- Chemical Change
b) Viscosity- Physical Change
c)
d)

Salt dissolves into water.
a) Physical
b) Chemical
c)
d)

Anytime there is a phase change...
a) Physical
b) Chemical
c)
d)

When one molecule of starch is changed into glucose. (something different)
a) Chemical
b) Physical
c)
d)

A substance made of 2 or more elements chemically combined.
a) Element
b) Compound
c)
d)

Combination of two or more substances NOT combined chemically.
a) Mixture
b) Compound
c)
d)

A material's ability to allow heat to flow.
a) Conductivity
b) Viscosity
c)
d)

Malleability
a) A substances ability to be hammered into a thin sheet
b) The ratio of a substances mass compared to its volume
c)
d)

Flammability
a) A material's ability to burn in the presence of oxygen
b) How readily a substance combines chemically with other substances
c)
d)

Reactivity
a) Material's ability to burn in the presence of oxygen
b) How readily a substance combines chemically with other substances
c)
d)

Chemical change...
a) Substance reacts and forms one or more new substances
b) A change in substance appearance, without changing the composition of the material
c)
d)

Physical change...
a) A change in substance appearance, without changing the composition of the material
b) Substance reacts and forms one or more new substances
c)
d)

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