Hydrogen gas reacts with oxygen to form liquid water. Write a balanced chemical equation for this reaction

2H2 + O2 —> 2H2O

Explanation:

The equation for the reaction between H2 and O2 to produce liquid water is illustrated below:

H2 + O2 —> H2O

Next, we need to balance the equation. This can be achieved by doing the following:

There are 2 atoms of oxygen on the left side and 1 atom on the right side. It can be balanced by putting 2 in front of H2O as shown below:

H2 + O2 —> 2H2O

There are a total of 4 atoms of Hydrogen on the right side and 2 atoms on the left. It can be balanced by putting 2 in front of H2 as shown below:

2H2 + O2 —> 2H2O

Now we can see that the equation is balanced as we have the same number of atoms of Hydrogen and oxygen on both sides of the equation

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