Question

What type of ion does the substance give off if turns the paper blue?

Answer 1

Acidic

Step-by-step explanation:

Answer 2

Bases turns red litmus paper blue.

Step-by-step explanation:

Arrhenius theory states a Base is a substance which produces one or more hydroxyl ion or hydroxide ion (OH-) in aqueous solution.

Examples

`KOH(s)>K^+(aq)+OH^-(aq)\\\\Ca(OH)_2 (s)>Ca^(2+)(aq)+2OH^- (aq)\\\\Al(OH)_3 (s)> Al^(3+)(aq)+3OH^- (aq)`

Please note: (aq) stands for aqueous which means in the presence of water that is, water acts as a solvent.

Bases consists of a cation and hydroxide as its anion in the above examples.

Arrhenius Theory: An acid is a substance which produces one or more hydrogen ions, (H+) in aqueous solution.

Examples:

`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)`

Bronsted Lowry Theory:

An acid is a substance that can donate one or more proton

A base is a substance which can accept one or more protons

HA (acid) loses H+ to form A-

B (base) gains H+ to form HB+