The equation H2+O2 arrow to the right H2O be balanced by changing it to: A. H2+O2...

Question

Question

The equation H2+O2 arrow to the right H2O be balanced by changing it to:

A. H2+O2 arrow to the right H2O2

B. 2H2+O2 arrow to the right 2H2O

C. Nothing needs to be done; it is already balanced

D. H2+2O2 arrow to the right 4H2O

Answer 1

Answer #1

Equation needed to balanced: H₂ + O₂ ----> H₂O

#Option A : H₂ + O₂ ----> H₂O₂

This is an incorrect option. As the reaction says there should be H₂O on the right side but here it is H₂O₂.

#Option B : 2H₂ + O₂ ----> 2 H₂O

As the number of hydrogen and oxygen is the same on both sides, so this is the correct option.

#Option C: H₂ + O₂ ----> H₂O

As here the no. of oxygen on the left side is 2 and on right side, it is one, so this is unbalanced. This is an incorrect option.

#Option D: H₂ + 2O₂ ----> 4H₂O

As here the no. of hydrogen on the left side is 2 and on the right side, it is 8, so this is unbalanced. This is an incorrect option.

Option B is correct.

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Answer 2

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