Question

how can you say that a substance is a compound or element ??
plz guys help me fast
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Answer 1

Answer:

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Explanation:

Decide whether a substance is chemically pure. If it is pure, the substance is either an element or a compound. If a substance can be separated into its elements, it is a compound. If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture.

Answer 2

Explanation:

compound is a mixture of 2or more substance.and it can be seperated by chemical processes

element is not a mixture.it cannot be separated by chemical processes

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