Question

Writing Equations for Reactions

 Write the correct formulas for each reactant and place a yield arrow (→) after the last reactant.

 Identify reaction type: single or double displacement, using the guidelines outlined thus far.

 If you determine that a reaction will occur, write the correct formula(s) of the products after the If you determine that a reaction will not occur, simply write “no reaction” after the arrow.

 Balance the equation (to ensure mass conservation).

 Be sure to include the physical states of all reactants and products in your final equation.

1) Aqueous sodium chloride + aqueous silver nitrate

2) Zinc metal + hydrochloric acid

3) Aqueous sodium phosphate + aqueous copper(II) sulfate

4) Copper metal + aqueous silver nitrate

5) Hydrochloric acid + solid sodium bicarbonate (just a small scoop)

6) Aqueous nickel(II) nitrate + aqueous sodium hydroxide

7) Copper metal + aqueous zinc nitrate

8) Hydrochloric acid + aqueous sodium hydroxide

9) Aqueous sodium chloride + aqueous potassium nitrate

10) Magnesium metal + sulfuric acid

11) Aqueous iron(III) chloride + aqueous ammonium hydroxide

Answer 1

1) Aqueous sodium chloride + aqueous silver nitrate

NaCl(aq) + AgNO3(aq) ---------------> AgCl(s) + NaNO3(aq)    double displacement

2) Zinc metal + hydrochloric acid

    Zn(s) + 2HCl(aq) -----------------> ZnCl2(aq) + H2(g) single displacement

3) Aqueous sodium phosphate + aqueous copper(II) sulfate

   2Na3PO4(aq) + 3CuSO4(aq) ---------------> 3Na2SO4 (aq) + Cu3(PO4)2 (s)   double displacement

4) Copper metal + aqueous silver nitrate

    Cu(s) + 2AgNO3(aq) -----------------> Cu(NO3)2(aq) + 2Ag(s)    single displacement

5) Hydrochloric acid + solid sodium bicarbonate (just a small scoop)

       HCl(aq) + NaHCO3(aq) ------------------> NaCl(aq) + CO2(g) + H2O(l)

6) Aqueous nickel(II) nitrate + aqueous sodium hydroxide

      Ni(NO3)2(aq) + 2NaOH(aq)---------------> 2NaNO3(aq) + Ni(OH)2(s)   double displacement

7) Copper metal + aqueous zinc nitrate

   Cu(s) + Zn(NO3)2 (aq) ----------------> No reaction

8) Hydrochloric acid + aqueous sodium hydroxide

       HCl(aq) + NaOH(aq) ----------------> NaCl(aq) + H2O(l) acid -base reaction

9) Aqueous sodium chloride + aqueous potassium nitrate

      NaCl(aq) + KNO3(aq) -----------------> KCl(aq) + NaNO3(aq)   double displacement

10) Magnesium metal + sulfuric acid

        Mg(s) + H2SO4(aq) -----------> MgSo4(aq) + H2(g) single displacement

11) Aqueous iron(III) chloride + aqueous ammonium hydroxide

        FeCl3(aq) + 3NH4OH(aq) ---------> NH4Cl(aq) + Fe(OH)3(s)    double displacement