chemistry/stoichiometry/balancing/ How to BalanceNa2CO3 + HCl = NaCl + H2CO3

How to Balance Sodium carbonate + Hydrochloric acid → Sodium chloride + Carbonic acid

How to Balance: Na2CO3 + HCl → NaCl + H2CO3

Type of Chemical Reaction: This is a double replacement reaction.

Word Equation: Sodium carbonate + Hydrochloric acid → Sodium chloride + Carbonic acid

Balancing Strategies: In this reaction the Na and H atoms switch places. Therefore we have a double replacement (displacement) reaction.

You may want to start by changing the coefficient in front of the HCl.
For a complete explanation, watch:

About Balancing Chemical Equations

When balancing chemical equations our goal is to have the same number of each type of atom on both sides of the equation.

Only change the coefficients (these are the numbers in front substances).
Coefficients are the numbers in front of the molecule.
Never change the subscripts (the small numbers after elements).
Coefficients are the numbers in front of the molecule.

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