Determine if a precipitate will form if you mix together solutions of potassium sulfate and calcium bromide. If so, write down the precipitate's name and formula.
Question
Determine if a precipitate will form if you mix together solutions of potassium sulfate and calcium bromide. If so, write down the precipitate's name and formula.
Solution
Step 1: Write down the formulas for the reactants. Potassium sulfate is K2SO4 and calcium bromide is CaBr2.
Step 2: Predict the possible products using the double displacement reaction. The possible products are potassium bromide (KBr) and calcium sulfate (CaSO4).
Step 3: Check the solubility rules to determine if either of the possible products are insoluble. According to the solubility rules, all potassium compounds (KBr in this case) are soluble. However, calcium sulfate (CaSO4) is slightly soluble, meaning it will form a precipitate in a saturated solution.
So, yes, a precipitate will form if you mix together solutions of potassium sulfate and calcium bromide. The precipitate's name is calcium sulfate and its formula is CaSO4.
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