Answer:
C
Explanation:
The first and most obvious statement is that [OH-] is increased, but that is not offered to you.
The second most obvious statement is that the [H+] ion is decreased. That is offered to you. It is C
Answer:
[H+] is decreased.
Explanation:
Arrhenius Theory:
An acid is a substance which produces one or more hydrogen ions, (H+) in aqueous solution.
Examples:
[tex]HCl(aq)>H^+(aq)+Cl^-(aq)\\\\HBr(aq)>H^+(aq)+Br^- (aq)\\\\H_2 SO_4(aq)>2H^+(aq)+SO_4^2- (aq)\\\\H_3 PO_4(aq) >3H^+ (aq)+PO_4^3-(aq)\\\\CH_3 COOH(aq)>CH_3 COO^- (aq)+H^+ (aq)[/tex]
A Base is a substance which produces one or more hydroxyl ion or hydroxide ion (OH-) in aqueous solution.
Examples
[tex]NaOH(s)>Na^+ (aq) + OH^- (aq)\\\\KOH(s)>K^+ (aq) +OH^- (aq)\\\\Ca(OH)_2 (s)>Ca^{2+} (aq)+2OH^-(aq)\\\\Al(OH)_3 (s)> Al^{3+}(aq)+ 3OH^- (aq)[/tex]
Please note:
(aq) stands for aqueous which means in the presence of water that is, water acts as a solvent
So, on adding a base to the water increase in [tex][OH^-][/tex] will take place and this will decrease the Hydrogen ion concentration
Pure water contains [tex][H^+]=[OH^-][/tex]
if the solution is acidic [tex][H^+ ]>[OH^- ][/tex]
if the solution is Basic [tex][H^+ ]<[OH^- ][/tex]
