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Klio2033 [76]
3 years ago
10

Enter a balanced equation for the reaction between aqueous lead(II) nitrite and aqueous potassium bromide to form solid lead(II)

bromide and aqueous potassium nitrite. Express your answer as a chemical equation. Identify all of the phases in your answer.
Chemistry
1 answer:
lesya [120]3 years ago
6 0

Answer:

Pb(NO_{2})_{2}_{(aq)} + 2KBr_{(aq)}----->PbBr_{2}_{(s)} + 2 KNO_{2}_{(aq)}

Explanation:

The charges are as follows:

Pb^{+2} since oxidation number of lead is 2 as indicated lead (II)nitrite. The number in parentheses indicates the oxidation number.

NO_{2}^{-1} bears the charge -1.

As lead bears 2 positive charges so we need two nitrite ions to form lead (II) nitrite.

Br^{-1} , it is a halogen and bears the charge -1.

K^{+1} , it is an alkali metal.

Since Bromide bears -1 charge and potassium bears +1 charge so we need only 1 ion of bromide and 1 ion of potassium to form potassium bromide.

Similarly, to form lead bromide we need 2 ions of bromide and 1 ion of lead, and to form potassium nitrite we need 1 nitrite ion and 1 potassium ion.

The final balanced equation is as follows, the various states of reactants and products are also written properly.

Pb(NO_{2})_{2}_{(aq)} + 2KBr_{(aq)}----->PbBr_{2}_{(s)} + 2 KNO_{2}_{(aq)}

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