6.5abc review

Front

Is Iron (Fe) an element or a compound?

Back

Element

Front

What is the chemical symbol of magnesium?

Back

Mg

Front

Is 'cutting wood' a chemical or physical change?

Back

Physical change

Front

The oceans are primarily composed of which two elements?

Back

Hydrogen and oxygen

Front

How many elements are in FeO?

Back

2

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is the chemical symbol for oxygen?

Back

O

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What are the two main components of water?

Back

Hydrogen and oxygen.