Question

1) One mole of which of the following substances weighs the most?
A) H2O
B) H2 O2
C) H2
D) O3

Answer 1

Answer:

o3

Explanation:

at 1 mole H2O has 18 weight

H2O2 has 34

H2 has 2

O3 has 64

so O3 weight is the most

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