3. Elements and compounds

Question:

4 m.

Answer the following:

Consider the following reaction where two substances, A and B, combine to form a product C:
\(A + B \to C\)

Assume that A and B cannot be broken down into simpler substances by chemical reactions.

1. Which of the following is the correct about A and B?

A and B are elements; they can be broken down chemically
A is a compound and B is an elements
A and B are compounds; they cannot be broken down chemically
A and B are elements; they cannot be broken down chemically

2. Which of the following is the correct about C?

C is a compound; has different properties from A and B
C is a mixture; has different properties from A and B
C is a compound; has similar properties A and B
C is an element; has different properties from A and B

3. Which method can be used to separate C into A and B

Evaporation
Chemical methods
Filteration
Handpicking

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