Write a net ionic equation for the reaction that occurs when aqueous solutions o

Question

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

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

Consider the reaction when aqueous solutions of potassium hydroxide and zinc bromide are combined. The net ionic equation for this reaction is:

Consider the reaction when aqueous solutions of ammonium phosphate and magnesium sulfate are combined. The net ionic equation for this reaction is:

Explanation / Answer

1. HNO2 + NaOH = NaNO2 + H2O

H+ + NO2- + Na+ + OH- = Na+ + NO2- + H2O(l) (IONIC EQUATION)

NET IONIC (remove common ions from both side)

H+ OH- = H2O(l)

2. HCl + NaOH = NaCl + H2O

H+ + Cl- + Na+ + OH- = Na+ + Cl- + H2O (IONIC)

Net ionic

H+ + OH- = H2O(l)

3. 2KOH + ZnBr2 = Zn(OH)2 + 2KBr

2K+ + 2OH- + Zn2+ + 2Br- = Zn(OH)2 + 2K+ 2Br-

net ionic

Zn2+ + 2OH- = Zn(OH)2(s)

4. 2(NH4)3PO4 + 3MgSO4 = Mg3(PO4)2 + 3(NH4)2SO4

6NH4+ + 2PO4(3-) + 3Mg2+ + 3SO4(2-) = Mg3(PO4)2(s) + 3NH4+ + SO4(2-)

net ionic

3Mg2+ + 2PO4(3-) = Mg3(PO4)2(s)

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