Matter & Changes Review

A chemical can be best defined as...

• Any substance that has a definite composition - it is always made of the same stuff no matter where it  comes from.

• The identity of a substance changes and new substances form

• Anything that has mass and takes up space (volume)

• A characteristic of a substance that does involve a chemical change.

Is H₂O a reactant or product?

Answer explanation

reactants are always on the left side of the reaction arrow

The particles in a solid don't move much, they __________.

The rusting of iron represents a...

• Chemical change

• Physical change

• Chemical property

• Physical property

Draw an example of matter

Answer explanation

This can be a living thing or a nonliving thing. As long as it takes up space and volume, it is classified as matter.

These 3 subatomic particles makeup an atom.

• electrons and protons

• Protons, atoms, and molecules

• quarks, gluons, and electrons

• protons, neutrons, and electrons

Matter with a composition that is always the same is a(n):

• mixture

• substance

• heterogeneous mixture

• homogeneous mixture

How is an element different from a compound?

Answer explanation

An element consists of only 1 type of atom, whereas a compound consists of atoms of 2 or more DIFFERENT elements bonded together.

What are the two general types of matter?

• substances and mixtures

• mixtures and elements

• elements and compounds

• heterogeneous and homogeneous mixtures

What are the two types of substances?

• substances and mixtures

• mixtures and elements

• elements and compounds

• heterogeneous and homogeneous mixtures