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25 July, 18:58

Which of these substances are molecules?

1. H2O

2. NaCl

3. N2

4. O2

Question 12 options:

3 and 4

All of them

1 and 2

None of them

+4
Answers (1)
  1. 25 July, 19:01
    0
    A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. So I would say is all of them, as they all contain two atoms each even in the diatomics
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