Chemistry, asked by khanmantsa0786, 4 days ago

a. Valency 5. Valency of mercury is: c b. 2 a. 1 Which one of these is a monoatomic ion? a. Na b. b. NO3 Which one of these is a not a polyatomic ion? a. No, b. A+ The chemical formula of sodium carbonate is:

Answers

Answered by najmarayeen27092006

0

Answer:

1. Na

2. A+

The chemical formula of sodium carbonate is Na²CO³

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