You need to look up 'positive hydrogen ions' in some form of chemistry book?
a=b=c
No reaction
Being exothermic relates to a reaction of two substances which give out heat to the surroundings. As such, hydrochloric acid can't be exothermic by itself. If you add concentrated hydrochloric acid to water, however, heat is generated in the reaction which is one of the reasons why hydrochloric acid should only be diluted in this way (acid added to water, not the other way round) otherwise the solution can quickly and violently boil over and cause acid and heat burns to anything it touches.
Yes.
chlorination
a=b=c
No reaction
Being exothermic relates to a reaction of two substances which give out heat to the surroundings. As such, hydrochloric acid can't be exothermic by itself. If you add concentrated hydrochloric acid to water, however, heat is generated in the reaction which is one of the reasons why hydrochloric acid should only be diluted in this way (acid added to water, not the other way round) otherwise the solution can quickly and violently boil over and cause acid and heat burns to anything it touches.
Yes.
chlorination
lithium carbonate + hydrochloric acid ---> lithium chloride + carbon dioxide + water
Pumice does not react with hydrochloric acid.
Chlorine gas reacts with water to give hypochlorous acid and hydrochloric acid
Sodium hydroxide + Hydrochloric acid ----> Sodium chloride + Water It is a neutralization reaction and is also exothermic. Products are Sodium chloride and water.
It is an acid-base reaction and will form water and sodium chloride.
A salt and water. For example in the reaction if the acid is Hydrochloric acid and the alkali is Sodium Hydroxide the products are Sodium chloride - the salt - and water.
The equation for the ionization of hydrochloric acid is as follows: HCl(aq) + H2O(l) --> H3O+(aq) + Cl-(aq) Note that 'free' protons, H+, do not exist in aqueous solution, and thus it is more proper to illustrate the proton transfer to water, instead of simply dissociating the acid into ions.