Acid + strong base: Write a net ionic equation for the reaction that occurs when

Question

Acid + strong base:

Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and hydrocyanic acid are combined.

Acid + Weak Base

+ + +
+ Write a net ionic equation for the reaction that occurs when aqueous solutions of barium hydroxide and perchloric acid are combined. Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and hydrocyanic acid are combined. Write a net ionic equation for the reaction that occurs when aqueous solutions of ammonia and perchloric acid are combined. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leave all boxes blank and click on "Submit". Write a net ionic equation for the reaction that occurs when aqueous solutions of ammonia and hypochlorous acid are combined.

Explanation / Answer

1)Ba(OH)2(aq) + 2HClO4(aq) --> Ba(ClO4)2(aq) + 2 HOH(l)

Ba2+ + 2OH- + 2H+ + 2ClO4- --> Ba2+ + 2ClO4- + 2HOH(l)

H+ + OH- --> HOH(l)

This presupposes that your barium hydroxide is in solution. Barium hydroxide is a strong base, but it is not very soluble in water. By "strong", we mean that of all of the barium hydroxide that dissolves will dissociate into ions.

2)

molecular equation
NaOH + HCN -----> NaCN + H2O
Na+ + OH- + HCN-----> Na+ + CN-1 + H2O

4) NH3(aq)+H+ OCl4- (aq)=NH4+(aq) OCl4- (aq)

4)

NH3(aq)+H+ OCl- (aq)=NH4+(aq) OCl- (aq)

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