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Ede4ka [16]
4 years ago
8

What does the subscript 2 show in this chemical equation? h2o → 2h o

Chemistry
2 answers:
Salsk061 [2.6K]4 years ago
7 0

Answer: B : There are two hydrogen atoms.

Explanation:In chemical reactions, symbols and formulas represent the substances that are formed or broken down. The formula for water is H2O.

The symbols H and O mean that water contains the elements hydrogen and oxygen. The subscript 2 shows that there are 2 hydrogen atoms in a molecule of water.

Since there is no number beside the O, there must be only one oxygen in the water molecule.

Naily [24]4 years ago
3 0
 there are 2 hydrogen atoms. 
it is right answer that is option B.
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