Please answer!

1 answer:

5 0

1.) A compound is a substance that originates from two or more separate elements. It shares some similarities with a mixture.

2.) A compound has quite different properties from which it was formed. It also cannot be separated easily. Compounds are formed by chemical reactions.

3.) A pure substance has a constant composition and has consistent properties. It can be a compound or an element, but its composition is constant.

Hope this helps. :)

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Explanation:

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Hope this helps and have a great day :)

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$\boxed {\boxed {\sf A. \ 54 \ grams }}$

Explanation:

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