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Question

Find the total number of molecules and atoms in the reactants:

N2+3H22NH3


A

Combination reaction

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B

Molecules - 6

Atoms - 16

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C

Molecules - 4

Atoms - 8

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D

Molecules - 8

Atoms - 4

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Solution

The correct option is C

Molecules - 4

Atoms - 8


In the given chemical equation, N2+3H22NH3 the reactants are N2+3H2.

Number of molecules on reactant side = 4
( 1 molecule of N2 + 3 molecules of H2)

Number of atoms on reactant side = 8
(2 atoms of nitrogen + 6 atoms of hydrogen)


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