1.
the study of the composition, structure, and properties of matter and the changes it undergoes
2.
any substance that has a definite composition
3.
the smallest unit of an element that maintains the properties of that element
4.
a pure substance made of only one kind of atom
5.
a reaction in which one or more substances are converted into different substances
6.
a substance that is formed by a chemical change
7.
a substance that reacts in a chemical change
8.
change a change in which one or more substances are converted into different substances
9.
substance that is made from the atoms of two or more elements that are chemically bonded
