Which of the following are true about a compound? 1.It is made of only one element.

2.It is made of two or more elements represented by a chemical formula.

3.It contains elements that are chemically combined.

4.It contains elements that when combined form a new substance.

2 and 3

2, 3 and 4

1 and 3

1, 2, 3, and 4

there is no

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step-by-step explanation: it is d

step-by-step explanation:

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