a$.$ mortar $($a mixture of calcium carbonate and sand$)$

b$.$ gasoline

c$.$ antifreeze $($a mixture of water and ethylene glycol$)$

d$.$ sodium chloride dissolved in water

e$.$ the air trapped inside a balloon $($not including the balloon$)$

$3.$ A pure substance composed of two or more different elements is

a$.$ a homogeneous mixture.

b$.$ a heterogeneous mixture.

c$.$ a polyelement.

d$.$ an atom.

e$.$ a chemical compound.

$4.$ A$($n$)$ is a pure substance that is composed of only one type of atom.

a$.$ element

b$.$ homogeneous mixture

c$.$ heterogeneous mixture

d$.$ macroscopic particle

e$.$ particulate

$5.$ Which term best describes carbon dioxide, $C{O}_2?$

a$.$ homogeneous mixture

b$.$ heterogeneous mixture

c$.$ element

d$.$ chemical compound

e$.$ none of the above

$6.$ All of the following are examples of physical properties EXCEPT

a$.$ the boiling point of ethanol.

b$.$ the conductivity of aluminum wire.

c$.$ the frying of an egg.

d$.$ the density of neon gas.

e$.$ the melting point of gold.

$7.$ An intensive property of a substance is

a$.$ only visible with magnification.

b$.$ dependent on its volume, but not its mass.

c$.$ independent of the amount present.

d$.$ dependent only on its temperature.

e$.$ dependent only on its mass and volume.

$8.$ The density of acetic acid is $1\mathrm{.}05\frac{g}{m}L.$ What is the volume of $327g$ of acetic acid?

a$.{2\mathrm{.}91}^{\text{'}}{10}^{-3}mL$