how do i balance SO3 + H2O = H2SO4
It is already balanced.
1:1
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To balance the equation SO3 + H2O = H2SO4, follow these steps:
Step 1: Count the number of atoms on each side of the equation.
On the left side:
Sulfur (S): 1
Oxygen (O): 3
On the right side:
Hydrogen (H): 2
Sulfur (S): 1
Oxygen (O): 4
Step 2: Balance the atoms one by one.
Start with the element that appears in the fewest compounds, which in this case is sulfur (S).
Add a coefficient in front of the SO3 on the left side to balance the number of sulfur atoms:
SO3 + H2O = H2SO4
Now, sulfur is balanced with 1 atom on each side.
Step 3: Balance oxygen (O) atoms.
Count the number of oxygen atoms on each side:
On the left side: 3
On the right side: 4
To balance the oxygen atoms, add a coefficient in front of H2O on the left side:
SO3 + 2H2O = H2SO4
Now, oxygen atoms are balanced with 3 on each side.
Step 4: Balance hydrogen (H) atoms.
Count the number of hydrogen atoms on each side:
On the left side: 4
On the right side: 2
To balance the hydrogen atoms, add another coefficient in front of H2O on the left side:
SO3 + 3H2O = H2SO4
Now, hydrogen atoms are balanced with 4 on each side.
Step 5: Check the overall balance.
Count the numbers of each element atom again to ensure everything is balanced:
On the left side: 1 S, 3 O, 9 H
On the right side: 1 S, 4 O, 4 H
Both sides have the same number of atoms for each element, and the equation is now balanced.
The balanced equation is:
SO3 + 3H2O = H2SO4