Question

d. it has a fixed composition.

1. what is one way that compounds and mixtures are alike? what is one way in which they are different?

Explanation:

Both compounds and mixtures are made up of two or more substances. Compounds are chemically combined with a fixed composition, while mixtures are physically combined with a variable composition.

Answer:

Alike: Both consist of two or more substances. Different: Compounds have a fixed composition (chemically combined), mixtures have a variable composition (physically combined).