# Chemistry2

12.) Chlorine reacts with potassium bromide to produce potassium chloride and bromine.

a.) write a chemical equation, using words, to represent the above chemical reaction.

Answer: Chlorine + potassium bromide ==> potassium chloride + bromine
(Is this correct?)

b) Suppose 4.0 g of chlorine completely reacts with 13.4 g of potassium bromide producing 8.4 g of potassium chloride. What mass of bromide is produced?

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1. Yes, #1 is right. To do #2, look at your equation and fill in the blanks but I will use symbols to save space.

Cl2 + 2KBr ==> 2KCl + Br2
4.0...13.4.....8.4.....x
Remember the Law of conservation of mass; i.e., matter is not created or destroyed. Therefore, since you have 17.4 g on the left you must have 17.4 g on the right. You know KCl is 8.4 and remainder must be Br2.

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posted by DrBob222
2. Chlorine reacts with potassium bromide to produce potassium chlorideChlorine reacts with potassium bromide to produce potassium chloride . .Chlorine reacts with potassium bromide to produce potassium chloride .

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