How many atoms combined to form the two water molecules?
A) Total 6, two oxygen and four hydrogen atoms
B) Total 6, two hydrogen and four oxygen atoms
C) Total 6, three oxygen and three hydrogen atoms
D) Total 10, six hydrogen and four oxygen Atoms
Correct Answer: A
Solution :
As you can see from given diagram two hydrogen gas molecules with four hydrogen atoms and one oxygen gas molecule with two oxygen atoms is required for formation of two water molecules.
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