Net Ionic Equations

Question 1

Complete Balanced Equation or Non-Ionic equation: definition and example.

Answer 1

Includes every element present in the equation.

Zn(s)+2HCl(aq)→H2(g)+ZnCl2(aq)

Question 2

Total Ionic Equation: definition and example.

Answer 2

Fully expanded equation.

Zn(s)+2H+(aq)+2Cl(aq)→H2(g)+Zn2+(aq)+2Cl-(aq)

Question 3

Net Ionic Equation: definition and example.

Answer 3

Only the reacting elements.
Zn(s)+2H+(aq)→H2+(g)+Zn2+(aq)
when writing the net ionic equation the 6 strong acids ionize in water all other acids do not ionize they remain intact including their (aq) state.

Question 4

Define spectator ions.

Answer 4

The ions that do not take part in the reaction.

Question 5

Writing Net Ionic Equations

What are the rules for writing net ionic equations?

Answer 5

• Ionic substances which are soluble dissociate and are written in an ionic form with ions in (aq) state.
• Molecules are never put into ions(no ions)
• Acids are always soluble but only strong acids ionize 100%. The other acids are left in molecular form.

Question 6

Write, balance and name the type of reaction for the equation hydrofluoric acid.

Answer 6

HF(aq)→HF(aq)
weak acid
Dissolution reaction

Question 7

Write, balance and name the type of reaction for the equation calcium nitrate.

Answer 7

Ca(NO3)2(s) →Ca2+(aq) + 2NO3(aq)-

dissociation reaction.

Question 8

Write, balance and name the type of reaction for the equation nitric acid.

Answer 8

HNO3(aq)→H+(aq) +NO3-(aq)
strong acid
Ionization reaction

Question 9

Write, balance and name the type of reaction for the equation acetone.

Answer 9

C3H6O(l)→C3H6O(aq)

Dissolution reaction

Question 10

Write, balance and name the type of reaction for the equation calcium sulphite.

Answer 10

CaSo3(s)→CaSO3(s)

Dissolution reaction

Question 11

Write, balance and name the type of reaction for the equation copper(ll) chloride.

Answer 11

CuCl2(aq)→CuCl(s)

No Reaction