Compounds are made of more than one type of element bound together in fixed ratios?

True

Explanation:

Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions. Example: Copper

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass. It can be decomposed into simpler constituents using chemical reactions. Example: water

In water the ratio of hydrogen to oxygen is always 2:1

Thus the statement compounds are made of more than one type of element bound together in fixed ratios is true.

one state would change   like louisiana to texas. thats a change

explanation:

b) nuclear ive learned that in a pedtrodic table