Hydrogen (H2) and oxygen (O2) combine to make water (H2O) in the following equation.
6H2 + 3O2 -> ?H2O
How many water molecules would be produced?
A. Six
B. Four
C. Three
D. Five
1. Six
2. 12 oxygen atoms
3. Reactant bonds break and atoms rearrange to form new product combinations
4. Two
5. No, it does not because the number and mass of atoms are conserved even though the number of molecules is not
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To determine how many water molecules would be produced in the given equation, you need to balance the equation by ensuring that there is an equal number of each element on both sides. Let's go through the balancing process step by step:
1. Start by counting the number of hydrogen atoms on each side of the equation. On the left side, there are 6 hydrogen atoms because there are 6 H2 molecules. On the right side, there are 2 hydrogen atoms in each H2O molecule, so a total of 2 x ? equals the number of hydrogen atoms on the right side.
2. Next, count the number of oxygen atoms. On the left side, there are 3 oxygen atoms because there are 3 O2 molecules. On the right side, each water molecule (H2O) contains 1 oxygen atom, so the number of water molecules, represented by ?, is equal to the number of oxygen atoms on the right side.
Now, let's balance the equation following these steps:
Start with the unbalanced equation:
6H2 + 3O2 -> ?H2O
Balancing the hydrogen atoms:
On the left side, we have 6 hydrogen atoms.
On the right side, each H2O molecule contains 2 hydrogen atoms.
Therefore, the number of water molecules (represented by ?) will be 6/2 = 3.
Balancing the oxygen atoms:
On the left side, we have 3 oxygen atoms.
On the right side, each H2O molecule contains 1 oxygen atom.
Therefore, the number of water molecules (represented by ?) will be 3.
So, the balanced equation is:
6H2 + 3O2 -> 3H2O
Therefore, the correct answer is C. Three water molecules would be produced.
1. The equation as written is not correct. The proper way to write the equation is
2H2 + O2 ==> 2H2O
2. The question you've asked can't be answered BECAUSE you don't say how much hydrogen and how much oxygen are used.
3. However, I think I know what you mean so the balanced equation you have written would be 6H2 + 3O2 ==> 6H2O and I would choose A for the answer.