Question
2H2 + 1O2 -> -> 2H2O
if you change the 2H2 to 3H2 molecules and balance the equation, identify which statement is correct?
(1 point)
• It is not possible to produce water without leftover molecules.
• The result of the equation will be the same.
ach oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules.
• The equation will produce three molecules of water.
if you change the 2H2 to 3H2 molecules and balance the equation, identify which statement is correct?
(1 point)
• It is not possible to produce water without leftover molecules.
• The result of the equation will be the same.
ach oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules.
• The equation will produce three molecules of water.
Answers
GPT-4o mini
If you change the equation to reflect the reactants as 3H₂, the balanced chemical equation would be:
\[ 3\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O} \]
Now, let's analyze the statements:
1. **It is not possible to produce water without leftover molecules.** - This is incorrect because in this balanced equation, there are no leftover molecules if you have the right amounts of H₂ and O₂.
2. **The result of the equation will be the same.** - This is misleading; the amounts are different in terms of the coefficients, but the result in terms of water produced is consistent in stoichiometry.
3. **Each oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules.** - This is accurate, but since we have 3H₂, there will be leftover hydrogen molecules.
4. **The equation will produce three molecules of water.** - This statement is incorrect as balanced, the equation produces only 3 molecules of H₂, which yields 2 molecules of H₂O.
The correct statement based on the changed equation is **"It is not possible to produce water without leftover molecules."** Since there are 3H₂ but only enough O₂ to fully react with 2 of the H₂.
\[ 3\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O} \]
Now, let's analyze the statements:
1. **It is not possible to produce water without leftover molecules.** - This is incorrect because in this balanced equation, there are no leftover molecules if you have the right amounts of H₂ and O₂.
2. **The result of the equation will be the same.** - This is misleading; the amounts are different in terms of the coefficients, but the result in terms of water produced is consistent in stoichiometry.
3. **Each oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules.** - This is accurate, but since we have 3H₂, there will be leftover hydrogen molecules.
4. **The equation will produce three molecules of water.** - This statement is incorrect as balanced, the equation produces only 3 molecules of H₂, which yields 2 molecules of H₂O.
The correct statement based on the changed equation is **"It is not possible to produce water without leftover molecules."** Since there are 3H₂ but only enough O₂ to fully react with 2 of the H₂.