Question

In the equation2H2+1O2→→2H2O if you change the  2H2 to  3H2 molecules and balance the equation, identify which statement is correct?(1 point)ResponsesThe result of the equation will be the same.The result of the equation will be the same.It is not possible to produce water without leftover molecules.It is not possible to produce water without leftover molecules.Each oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules.Each oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules.The equation will produce three molecules of water.

Answer 1

To balance the modified equation \(3H_2 + O_2 \rightarrow\), we need to adjust the number of water molecules produced.

Starting with the equation:

\[ 3H_2 + O_2 \rightarrow xH_2O \]

1. Each water molecule (\(H_2O\)) requires 2 hydrogen atoms.
2. With 3 molecules of \(H_2\), we have 6 hydrogen atoms available.
3. Therefore, the number of water molecules produced (x) will be calculated as follows:

\[ 6 \text{ (hydrogens)} / 2 \text{ (hydrogens per water)} = 3 \text{ (water molecules)} \]

Now the balanced equation would be:

\[ 3H_2 + O_2 \rightarrow 3H_2O \]

This means three molecules of water are produced without any leftovers.

Therefore, the correct statement is:

Each oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules.

This statement is true because in the balanced equation, one molecule of oxygen combines with three molecules of hydrogen to produce three molecules of water, and there are no leftover molecules.