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Which of the following correctly represents an element?
A Water - H20
B Copper - Cu
C Carbon monoxide - CO
D Salt - NaCl


Sagot :

A water - H20 because you can touch it

Answer:

A water H2O

Explanation:

H2O is composed of 2 hydrogens which is represented H2 and the hydrogen is combined with one oxygen which forms water which is H2O