Question

1)Write the balanced NET IONIC equation for the reaction that occurs when hydrocyanic acid and potassium hydroxide are combined.

(aq)(s)(l)(g)	+	(aq)(s)(l)(g)		(aq)(s)(l)(g)	+	(aq)(s)(l)(g)	+	(aq)(s)(l)(g)

This reaction is classified as .
A. Strong Acid + Strong Base
B. Weak Acid + Strong Base
C. Strong Acid + Weak Base
D. Weak Acid + Weak Base

2)Write the balanced NET IONIC equation for the reaction that occurs when nitric acid and ammonia are combined.

Use H₃O⁺ instead of H⁺.

(aq)(s)(l)(g)	+	(aq)(s)(l)(g)		(aq)(s)(l)(g)	+	(aq)(s)(l)(g)

This reaction is classified as.
A. Strong Acid + Strong Base
B. Weak Acid + Strong Base
C. Strong Acid + Weak Base
D. Weak Acid + Weak Base

Answer 1

1).

Molecular equation ;

HCN (aq) + KOH (aq)  $\to$ KCN (aq) + H₂O (l)

Net ionic equation ;

HCN (aq) + OH^- (aq)  $\to$ CN^- (aq)  + H₂O (l)

The above reaction is classified as B. Weak acid + Strong base.

Weak acid is HCN , strong base is KOH.

2)

HNO₃ is strong acid and NH₃ is weak base.

Net ionic equation :

H₃O⁺ (aq) + NH₃ (aq)  $\to$ NH₄⁺ (aq) + H₂O (l)

Reaction is classified as

C. Strong acid + Weak base.