Question

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 .

_____ + _____ ---> _____ + _____

Answer 1

Answer:

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

2)Mn(NO3)2(aq) + 2KOH(aq) ----->Mn(OH)2(s) + 2KNO3(aq)

3)Zn(s) + 2H^2+(aq)----->Zn^2+(aq) + H2(g)

4) Cu(s) + 2Ag^+(aq) ---->Cu^2+(aq) + 2Ag(s)

Explanation:

A double replacement reaction is one in which ions exchange partners.

We can see that the ions in the reactants exchanged their partners in the products. Solid lead II sulphate was precipitated.

Reaction 2 is a single replacement reaction. Solid manganese hydroxide is formed.

Reactions 3 and 4 are redox processes as shown in the respective equations.