Question

Complete the following chemical equations and balance them -

${\mathrm{Na}}_2{\mathrm{CO}}_3+\mathrm{HCl}\to \mathrm{\_\_\_\_\_\_}+\mathrm{\_\_\_\_\_\_\_}+2\mathrm{NaCl}$

• A. CO₂
• B. H₂O

Answer 1

• The given reaction is an example of a neutralization reaction in which acid like HCl reacts with a base like Sodium carbonate $({\mathrm{Na}}_2{\mathrm{CO}}_3)$ giving salt and byproducts like (Carbon dioxide and water).
• Thus, the complete reaction is ${\mathrm{Na}}_2{\mathrm{CO}}_3+\mathrm{HCl}\to {\mathrm{CO}}_2+{\mathrm{H}}_2\mathrm{O}+2\mathrm{NaCl}$
• To balance the above reaction a coefficient of 2 is placed is before Hydrochloric acid as; ${\mathrm{Na}}_2{\mathrm{CO}}_3+2\mathrm{HCl}\to {\mathrm{CO}}_2+{\mathrm{H}}_2\mathrm{O}+2\mathrm{NaCl}$

Final answer: ${\mathrm{Na}}_2{\mathrm{CO}}_3+2\mathrm{HCl}\to {\mathrm{CO}}_2+{\mathrm{H}}_2\mathrm{O}+2\mathrm{NaCl}$