element

solution

molecule

compound

mixtures are composed of one substance

all substances in mixtures are visible at all times

mixtures are composed of more than one substance

mixtures have fixed compositions

mixture

element

compound

solution

Using paper filtering system

allowing the salt to settle

allowing the water to evaporate

none of the above

density of 0.968 g/cm³

silver-white color

soft at room temperature

tarnishes when exposed to air

being black in color

neutralizing acids

burning with oxygen

releasing SO₂ gas

ability to rust

reactivity with acids

resistance to bending

ability to burn in oxygen

heating a substance to its boiling point

examining a substance under a microscope

observing how one substance interacts with another

passing an electrical current through a substance

Physical change: NaCl _(s) → Na _(aq) + Cl^- _(aq)

Physical change: H₂O _(s) → H₂O _(l)

Chemical change: CO_{2 (s)} → CO_{2 (g)}

Physical change: C₆H₁₂O_{6 (s)} + 6 O_{2 (g)} → 6CO_{2 (g)} + 6 H₂O _(l)

A different mixture is formed in each case.

A different solution is formed in each case.

Both a change of state and of elements is involved.

New molecules are formed but the same elements exist.

Two substances have different reactions to light.

Two substances have different temperatures.

Two substances have different volumes.

Two substances have different shapes.

They are made up of a different type of matter.

They have different boiling points.

They have different dimensions.

They contain a different amount of matter per unit volume.

high luster, malleable, and ductile

colorless, odorless, with a freezing point of 0°C

red in color, ductile, with a melting point of 1100°C

yellow in color, malleable, with a mass of 5 grams

weight of a bag of lead pellets

volume of a cylinder of copper

boiling point of a pot of water

heat required to melt an ice cube