Question -The chemical formula of sodium carbonate is:
Options:
A .  NaCO2
B .  NaCO3
C .  Na2CO3
D .  Na3CO2
Answer: Option C : C The constituent ions present insodium carbonate areNa+andCO32− Symbol: Na CO3 Charge: +1 -2 To balance the charges, we cross multiplythe valencies andget the chemical formulaof sodium carbonate asNa2CO3.
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