Question

6 what is the similarity between a compound and a mixture? a they contain more than one element b they contain the same types of elements c they can be separated only through physical means d they can be separated only through chemical means

Explanation:

• Option A: A compound is made of two or more elements chemically combined, and a mixture is made of two or more substances (which can be elements or compounds) physically mixed. So both contain more than one element (or substance, but elements are part of it).
• Option B: Compounds and mixtures don't have to have the same types of elements. For example, a compound like H₂O has H and O, while a mixture like sand and salt has different elements.
• Option C: Compounds are separated by chemical means (e.g., breaking bonds), while mixtures are separated by physical means (e.g., filtration). So this is incorrect.
• Option D: As explained above, mixtures are separated physically, so this is incorrect.

Answer:

A. They contain more than one element