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15 January, 17:36

Which of these substances are molecules?

1. H2O

2. NaCI

3. N2

4. O2

Answer choices

A) 1&2

B) All of them

C) None of them

D) 3&4

+4
Answers (1)
  1. L
    15 January, 18:05
    0
    c) none of them

    Explanation:

    because H20, N2, O2 are all molecules except NaCl so there is no answers like (1, 3, and4) so we choose none of them.
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