When the gases dihydrogen sulfi and oxygen react, they form the gases sulfu dioxid and water vapor.
How od you write a balanced equation for the reaction?
H2S + O2 ==> SO2 and H2O
To write a balanced equation for a chemical reaction, you need to make sure that there are the same number of each type of atom on both sides of the equation.
To balance the equation for the reaction between dihydrogen sulfide (H2S) and oxygen (O2) to form sulfur dioxide (SO2) and water vapor (H2O), follow these steps:
Step 1: Write the unbalanced equation for the reaction:
H2S + O2 -> SO2 + H2O
Step 2: Start by balancing the most complex molecule or compound first. In this case, let's balance sulfur dioxide (SO2).
Step 3: Count the number of sulfur (S) atoms on both sides of the equation:
Left side: 1 (from H2S)
Right side: 1 (from SO2)
Since the sulfide (S) atoms are already balanced, we move on to balance the oxygen (O) atoms.
Step 4: Count the number of oxygen (O) atoms on both sides of the equation:
Left side: 2 (from O2)
Right side: 2 (from SO2 + H2O)
Both the O2 and SO2 contribute to oxygen atoms on the right side of the equation.
Step 5: Balance the remaining hydrogen (H) atoms:
Left side: 2 (from H2S)
Right side: 2 (from H2O)
Now, both the H2S and H2O contribute hydrogen atoms on their respective sides.
Step 6: As a final step, verify that all the elements are balanced:
H: 2 atoms on both sides
S: 1 atom on both sides
O: 2 atoms on both sides
The balanced equation for the reaction becomes:
2H2S + 3O2 -> 2SO2 + 2H2O