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1). Write a balanced equation for the double-replacement precipitation reaction

ID: 1060464 • Letter: 1

Question

1). Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients.

A precipitate forms when aqueous solutions of lead(II) nitrate and magnesium sulfate are combined.

Do not include states such as (s) or (aq). It is not necessary for you to indicate which of the products is the precipitate.

_____ + _____ ----> _____ + _____

2). Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients.

A precipitate forms when aqueous solutions of manganese(II) nitrate and potassium hydroxide are combined.

Do not include states such as (s) or (aq). It is not necessary for you to indicate which of the products is the precipitate.

_____ + _____ -----> _____ + _____

3). Write a balanced equation for the  single-replacement oxidation-reduction reaction described, using the smallest possible integer coefficients.
The reaction that takes place when  zinc metal combines with  aqueous hydrobromic acid.

______ + ______ -----> _____ + _____

4). Write a balanced equation for the  single-replacement oxidation-reduction reaction described, using the smallest possible integer coefficients.
The reaction that takes place when  copper metal combines with  aqueous silver nitrate .

_____ + _____ ---> _____ + _____

Explanation / Answer

1.Pb(NO3)2(aq) + MgSO4(aq) ----------> Mg(NO3)2(aq) + PbSO4(s)

2. Mg(NO3)2 (aq) + 2KOH(aq) ---------> Mg(OH)2(aq) + 2KNO3(aq)

3. Zn(s) + 2HCl(aq) --------> ZnCl2(aq) + H2(g)

4. Cu (s) + 2AgNO3(aq) ---------> Cu(NO3)2 + 2Ag(s)