Chemical and Physical Properties Quiz

What distinguishes a chemical property from a physical property?

• Chemical properties involve the formation of new substances.

• Physical properties involve reactions with other substances.

• Chemical properties can be observed without changing the substance.

• Physical properties always result in a new substance.

Which of the following is an example of a chemical change?

• Condensation of mist on an object

• Melting of ice

• Formation of rust on iron

• Measuring the density of water

Why is the condensation of mist considered a physical change?

• It results in a new substance.

• It involves a chemical reaction.

• It is a change in state without forming a new substance.

• It changes the chemical composition of water.

What property is being measured when calculating the molar mass of a substance?

• Chemical property

• Physical property

• Reactivity

• Toxicity

What happens during the electrolysis of water?

• Water molecules remain unchanged.

• Water becomes denser.

• Water changes from liquid to gas.

• Water molecules are separated into hydrogen and oxygen atoms.