Which element is most chemically similar to chlorine

Bromine

Explanation:

The options to this question are:

A) Sulfur, B) Calcium, C) Oxigen, D) Bromine, E) Argon

The answer is that Bromine is the most chemically similar to chlorine out of the options, because Bromine and Chlorine are halogens.

Halogens are a group of elements: Flourine (F), Chlorine (Cl), Bromine (Br), Iodine (I) and Astatine (At). The elements of this family they all have similar chemical properties.

So since Bromine is the only halogen in the options is the most chemically similar to Chlorine.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;