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.

answer: mercury

explanation:

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.