Matter review

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the two main categories of matter?

Back

The two main categories of matter are pure substances and mixtures.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

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

Front

How many atoms are in a molecule of water (H2O)?

Back

A molecule of water contains 3 atoms: 2 hydrogen atoms and 1 oxygen atom.

Front

What is the chemical formula for ammonia?

Back

The chemical formula for ammonia is NH3.

Front

How many oxygen atoms are in the chemical formula C6H12O6?

Back

There are 6 oxygen atoms in the chemical formula C6H12O6.

Front

What does the subscript in a chemical formula indicate?

Back

The subscript in a chemical formula indicates the number of atoms of the element in the molecule.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that are not chemically bonded, while a compound is a substance formed from the chemical bonding of two or more elements.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.