1) Identify which reaction is NOT a chemical reaction.

A) H2O (g) → H2O (l)

B) 2H2O (l) → 2H2 (g) + O2 (g)

C) AgNO3 (aq) + Cu (s) → Ag (s) + CuNO3 (aq)

D) Pb (NO3) 2 (aq) + 2 NaI (aq) → PbI2 (s) + 2 NaNO3 (aq)

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13 November, 11:13

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Boston Miranda · Answer 1

a) is the answer as water directly changes its state

1) Identify which reaction is NOT a chemical reaction.A) H2O (g) → H2O (l)B) 2H2O (l) → 2H2 (g) + O2 (g)C) AgNO3 (aq) + Cu (s) → Ag (s) + CuNO3 (aq)D) Pb (NO3) 2 (aq) + 2 NaI (aq) → PbI2 (s) + 2 NaNO3 (aq)