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Question
Balance the equation stepwise.
SO2(g) + H2S(aq) → S(s) + H2O(l)
Solution
SO2(g) + H2S(aq) → S(s) + H2O(l)
Step1: Count the number of each atom in reactant side:
H = 2
S = 2
O = 2
Step 2: Count the number of each atom in product side:
H = 2
S = 1
O = 1
Step 3: Then balance the number of each atom in an equation by multiplying reactant and product side with numeral value:
If we multiply H2S by 2 in the reactant side and S by 3 and H2O by 2 on the product side, the number of atoms in the product and reactant side gets the balance.
SO2(g) + 2H2S(aq) → 3S(s) + 2H2O(l)
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