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Question

Balance the following equation in a stepwise manner:

HCl+Na2CO3NaCl+H2O+CO2


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Solution

A balanced chemical equation has an equal number of atoms on both sides. So, as a first step, count the number of atoms on both sides.

  • Make a table like shown below to make the process easier-
ElementsNumber of atoms on the reactant sideNumber of atoms on the product side
hydrogen1×22
chlorine1×21×2
sodium21
carbon11
oxygen33
  • As shown in the table, the number of hydrogen and sodium atoms is unequal. So, just multiply HCl and NaCl by 2 and it will be balanced.
  • So, the balanced equation is written as follows:

2HCl+Na2CO32NaCl+H2O+CO2


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