4. Write molecular and net ionic equations and write predictions before lab. lit

Question

4. Write molecular and net ionic equations and write predictions before lab. lithium sulfate magnesium nitrate lithium sulfate sodium carbonate lithium sulfate sodium hydroxide lithium sulfate strontium chloride magnesium nitrate sodium carbonate magnesium nitrate + sodium hydroxide potassium phosphate + magnesium nitrate magnesium nitrate strontium chloride potassium phosphate + lithium sulfate sodium carbonate +sodium hydroxide potassium phosphate + sodium carbonate sodium carbonate strontium chloride potassium phosphate + sodium hydroxide sodium hydroxide +strontium chloride potassium phosphate strontium chloride

Explanation / Answer

Part a

Molecular reaction

Li2SO4+ Mg(NO3)2 ==>MgSO4 + 2LiNO3

Lithium sulfate + magnesium nitrate = magnesium sulfate + Lithium nitrate

Ionic equation
2Li+ + SO4(2-) + Mg(2+) + 2NO3- ==> MgSO4 + 2Li+ + 2NO3-

Net ionic equation

SO4(2-) + Mg(2+) ==> MgSO4

Part b

Molecular reaction

Na2CO3 + Li2SO4 = Li2CO3 + Na2SO4.

Sodium carbonate + Lithium sulfate = Lithium carbonate + Sodium sulfate

Ionic equation
2Li+ + SO4(2-) + 2Na+ + CO3(2-) ==> Na2SO4 + 2Li+ + CO3(2-)

Net ionic equation

SO4(2-) + 2Na+ ==> Na2SO4

Part C

Molecular reaction

2 NaOH + Li2SO4 = 2 LiOH + Na2SO4

Sodium hydroxide + Lithium sulfate  = Lithium hydroxide + Sodium sulfate

Ionic equation
2Li+ + SO4(2-) + 2Na+ + 2OH- ==> Na2SO4 + 2Li+ + 2OH-

Net ionic equation

SO4(2-) + 2Na+ ==> Na2SO4

Part d

Molecular reaction

Li2SO4(aq) + SrCl2(aq) => SrSO4(s) + 2LiCl(aq)

Lithium sulfate + strontium chloride =strontium sulfate + Lithium chloride

Ionic equation
2Li+ + SO4(2-) + Sr2+ + 2Cl- ==> SrSO4 + 2Li+ + 2Cl-

Net ionic equation

SO4(2-) + Sr2+ ==> SrSO4

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