Question

1. Choose the most correct option.
A. A sample of pure water, whatever the
source always contains
by
mass of oxygen and 11.1 % by mass of
hydrogen
a. 88.9 b. 18 c. 80 d. 16
​

Answer 1

Explanation:

is this helpful my dear friend

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Answer 2

Your right answer is 80.

OK dear...