Match the term with the example that shows its definition. Molecular composition A) Water has two hydrogen atoms and one oxygen atom Flammability B) Gasoline catches fire Heat of combustion C) High lead levels in a lake kill fish Toxicity D) The burning of coal releases hea

A) Water has two hydrogen atoms and one oxygen atom - Molecular composition.

Water is chemical compound with definite and constant composition with distinct chemical properties.

B) Gasoline catches fire - Flammability.

Gasoline isvolatile, flammable organic mixture.

C) High lead levels in a lake kill fiss - Toxicity.

For example, oil refineries and chemistry industry produce a lot of toxic chemical waste which is released into environment.

D) The burning of coal releases heat - Heat of combustion.

For example, coal power plants use coal to heat water into steam, that steam than move a steam turbine, which generate electricity.