Answer:
D Neither OH- or H+ ions into water,
B Ca2+ and Cl- ions are released.
Explanation:
The salt breaks up into calcium and chloride ions.
Answer:
A)
Solution:
Salt is formed when an acid reacts with a base. We call this reaction as a Neutralization reaction.
For example
[tex]NaOH+HCl>NaCl+H_2O[/tex]
[tex]CaCl_2[/tex] is formed from a strong base [tex]Ca(OH)_2[/tex] and strong acid HCl as shown in the Equation
[tex]Ca(OH)_2+2HCl>CaCl_2+2H_2 O[/tex]
[tex]CaCl_2[/tex] is a salt which produces ions [tex]Ca^{2+}[/tex] and [tex]Cl^-[/tex] ions into water
So the Answer is option D
Neither [tex]OH^-[/tex] or [tex]H^+[/tex] ions into water.
B)
Solution:
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_2SO_4(aq)>2H^+(aq)+SO_4^{2-}(aq)\\\\H_3 PO_4(aq)>3H^+(aq)+PO_4^{-3}(aq)\\\\CH_3COOH(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]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.
[tex]CaCl_2[/tex] is formed from a strong base [tex]Ca(OH)_2[/tex] and strong acid HCl as shown in the Equation
[tex]Ca(OH)_2+2HCl>CaCl_2+2H_2 O[/tex]
So when placed in water [tex]CaCl_2[/tex] as it is formed from a strong base it releases OH- ions and as it is formed from a strong acid it releases H+ ions .
So, option C is the Answer
Equal amounts of OH- and H+ ions into water
