Use the chemical reaction to answer the question.

Question

2H2+O2→□ H2O
2
H
2
+
O
2
→
◻

H
2
O
Which number will balance the equation?

(1 point)
Responses

4
4

6
6

2
2

8

Answer 1

The balanced equation for the reaction of hydrogen and oxygen to form water is:

\[ 2H_2 + O_2 \rightarrow 2H_2O \]

The correct number to balance the equation is 2.

So the answer is: 2.