Question

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Answer 1

Answer:

(1) When dilute hydrochloric acid reacts with sodium carbonate, then sodium chloride, carbon dioxide and water are formed. ... When carbon dioxide gas formed in the form of brisk effervescence is passed through lime water, it turns the lime water milky.

Explanation:

i only frist 1 sorry

Answer 2

Answer:

1 CO²

2 SO²

3. H²

4 HCl

5..N²O,O²