Which of the following reactions will not occur as written? which of the following reactions will not occur as written? sn (s) + 2agno3 (aq) → 2ag (s) + sn(no3)2 (aq) zn (s) + pb(no3)2 (aq) → pb (s) + zn(no3)2 (aq) co (s) + 2hi (aq) → h2 (g) + coi2 (aq) mg (s) + ca(oh)2 (aq) → ca (s) + mg(oh)2 (aq) co (s) + 2agcl (aq) → 2ag (s) + cocl2 (aq)

Option (4) is the correct answer.

Explanation:

According to the reactivity series, a more reactive metal has the ability to replace a less reactive metal in a chemical reaction.

It is known that calcium is more reactive than magnesium. So, in a chemical reaction magnesium can never replace calcium.

For example,

Therefore, this given reaction is not possible. But rest all given reactions are possible.

Thus, we can conclude that out of the given options reaction will not occur as written.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: