## (b) NaOH + H 2 SO 4 → mãng cầu 2 SO 4 + H 2 O

NaOH + H 2 SO 4 → na 2 SO 4 + H 2 O

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 Name of the element No. Of atoms in reactants No. Of atoms in products Sodium 1 2 Oxygen 5 5 Hydrogen 3 2 Sulphur 1 1

to balance Sodium,

Multiply NaOH by 2

2 NaOH + H 2 SO 4 → mãng cầu 2 SO 4 + H 2 O

 Name of the element No. Of atoms in reactants No. Of atoms in products Sodium 2 2 Oxygen 6 5 Hydrogen 4 2 Sulphur 1 1

to balance Hydrogen,

Multiply H 2 O by 2

2 NaOH + H 2 SO 4 → na 2 SO 4 + 2 H 2 O

 Name of the element No. Of atoms in reactants No. Of atoms in products Sodium 2 2 Oxygen 6 6 Hydrogen 4 4 Sulphur 1 1

Now, all the elements are balanced & the balanced equation is

2 NaOH + H 2 SO 4 → na 2 SO 4 + 2 H 2 O

2 NaOH + H 2 SO 4 → na 2 SO 4 + 2 H 2 O

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 12 years & a teacher from the past 16 years. He teaches Science, Accounts and English at randy-rhoads-online.com
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