Lesson Worksheet: Ionic Equations Chemistry • 10th Grade

In this worksheet, we will practice converting molecular equations to net ionic equations by identifying the charges and states of ionic species.


What is the ionic form of the chemical expression CuSO()4aq?

  • ACu()+SO()aqaq4
  • BCu()+S()+2O()aqaqaq2
  • CCu()+SO()2+42aqaq
  • DCu()+SO()+4aqaq
  • ECu()+S()+4O()2+22aqaqaq


A redox reaction is described by the equation: Mg()+CuSO()MgSO()+Cu()saqaqs44 Including the state symbol, identify the spectator ion in this reaction.

  • AMg()2+aq
  • BCu()2+aq
  • CMg()s
  • DSO()42aq
  • ECu()s


Select the spectator ions in the following reaction: 2AgNO()+(NH)CrO()AgCrO()+2NHNO()34242443aqaqsaq

  • ANO3 and NH+4
  • BAg+ and NH+4
  • CAg+ and CrO24
  • DNO3 and CrO24
  • ENO3 and Ag+


How many atoms and ions does a single unit of (NH)SO424 contain?

  • A15 atoms covalently bonded in 4 ions
  • B15 atoms covalently bonded in 2 ions
  • C10 atoms covalently bonded in 3 ions
  • D4 atoms covalently bonded in 4 ions
  • E15 atoms covalently bonded in 3 ions


Which ions are present in the ionic compound NHCl4?

  • ANH2+4 and Cl
  • BH+ and Cl
  • CN3, H+ and Cl
  • DNH+4 and Cl
  • ENH3, H+ and Cl


Consider the following equation: Fe()+OH()Y()3+aqXaqs What are the correct substitutions for 𝑋 and Y to complete and balance the partial ionic equation?

  • AX:1,Y:FeOH
  • BX:3,Y:FeO23
  • CX:2,Y:Fe(OH)2
  • DX:3,Y:Fe(OH)3
  • EX:1,Y:Fe(OH)3


Aluminum reacts with excess dilute hydrochloric acid to produce hydrogen gas. The resulting solution contains nontrivial quantities of the following ions: Al3+, H+, and Cl.

A student writes out a net ionic equation for the reaction. Which ion is not included in the net ionic equation?

  • AH+
  • BAl3+
  • CCl


Rate-of-reaction experiments often use the reaction between calcium carbonate and hydrochloric acid, as shown: CaCO()+2HCl()CaCl()+CO()+HO()3222saqaqgl What is the net ionic equation for this reaction?

  • ACaCO()+2H()Ca()+CO()+HO()3+2+22saqaqgl
  • BCaCO()Ca()+CO()+O()32+22saqgl
  • CCa()+CO()Ca()+CO()+O()2+232+22ssaqgl
  • DCO()+2H()CO()+HO()23+22saqgl


A pale-yellow precipitate is produced in the reaction between aqueous silver nitrate and potassium bromide solutions. What is the net ionic equation for this reaction?

  • AAg()+Br()AgBr()aqaqs
  • BAg()+Br()AgBr()+aqaqs
  • CAg()+KBr()AgBr()+K()++aqaqsaq
  • DAgNO()+KBr()AgBr()+KNO()33aqaqsaq
  • EAgNO()+Br()AgBr()+NO()33aqaqsaq


Ammonia gas is produced in the reaction between aqueous ammonium sulfate and dilute sodium hydroxide, as shown: (NH)SO+2NaOHNaSO+2NH+2HO4242432

Which of the following is the net ionic equation for this reaction?

  • ANH()NH()+H()+43+aqgaq
  • BNH()+OH()NH()+HO()+432aqaqgl
  • C(NH)SO+2OHSO+2NH+2HO4242432
  • D2NH+2Na+2OH2Na+2NH+2HO+4++32
  • ENH+Na+OHNa+NH+HO+4++32

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