Represent this reaction with balanced chemical equation. Disilane gas (Si2H6) undergoes combustion to form solid silicon dioxide and water.
2Si2H6 + 7O2 = 4SiO2 + 6H2O
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To balance the chemical equation for the combustion of disilane gas (Si2H6) to form solid silicon dioxide (SiO2) and water (H2O), you need to follow these steps:
1. Write down the unbalanced equation:
Si2H6 + O2 → SiO2 + H2O
2. Count the number of atoms on each side of the equation:
Si: 2 on the left, 1 on the right
H: 6 on the left, 2 on the right
O: 2 on the left, 3 on the right
3. Balance the elements one at a time, starting with the most complex:
Balance the oxygen atoms by multiplying the SiO2 on the right by 2:
Si2H6 + O2 → 2SiO2 + H2O
4. Next, balance the hydrogen atoms by placing a coefficient of 3 in front of H2O:
Si2H6 + O2 → 2SiO2 + 3H2O
5. Now, balance the silicon atoms by adding a coefficient of 3 in front of Si2H6:
3Si2H6 + O2 → 2SiO2 + 3H2O
The balanced chemical equation for the combustion of disilane gas is:
3Si2H6 + O2 → 2SiO2 + 3H2O