Question

2.
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. 88.8 b. 18
c. 80
d. 16
WY
​

Answer 1

Explanation:

a b c d e f g h I j k l m n o p q r s t u v w X y z z