Compare and contrast two elements combining to form a compound and two compounds combining to form a mixture.

Answer 1

You can find most of the information you need in your text or on the Internet; however, you can start with one or two facts.
1. A compound with completely different properties results when element A reacts with element B to form a compound (for example, AB).
2. A mixture of element A and element B: The properties of each element remain the same and each can be separated by physical means.

Answer 2

A compound with completely: A.reacts with element B.to from a compound.