True or False: Chemistry Quiz

Water is made up of hydrogen and oxygen.

Oxygen gas is colorless and odorless.

Gold is a compound.

Oxygen is needed for burning.

Carbon dioxide is used by plants during photosynthesis.

Ice is heavier than liquid water.

Helium is a flammable gas.

All metals are magnetic.

The pH of pure water is 7.

Oxygen is the most abundant gas in Earth's atmosphere.