Question

Write a molecular equation for the precipitation reaction that occurs (if any) when each set of...

Write a molecular equation for the precipitation reaction that occurs (if any) when each set of solutions is mixed. If no reaction occurs, write NOREACTION.

Part A

copper(II) bromide and lead (II) acetate

Express your answer as a chemical equation. Identify all of the phases in your answer. Enter NOREACTIONif no no reaction occurs.

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Part B

lithium sulfide and strontium iodide

Express your answer as a chemical equation. Identify all of the phases in your answer. Enter NOREACTIONif no no reaction occurs.

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Part C

cesium chloride and calcium sulfide

Express your answer as a chemical equation. Identify all of the phases in your answer. Enter NOREACTIONif no no reaction occurs.

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Part D

aluminum sulfate and sodium phosphate

Express your answer as a chemical equation. Identify all of the phases in your answer. Enter NOREACTIONif no no reaction occurs.

Homework Answers

Answer #1

Copper (II) bromide and lead acetate

CuBr2 + Pb(CH3COOH)2 ==== PbBr2 (s) + Cu(CH3COOH)2

PbBr2 is a precipitate.

lithium sulfide and strontium iodide

Li2S + SrI2 === 2LiI + SrS (s)

In order to see this reaction the concentration of the reactants must be high enough.

cesium chloride and calcium sulfide

2 CsCl + CaS === Cs2S (s) + CaCl2

Cs2S (s) this is a precipitte

aluminum sulfate and sodium phosphate

Al2(SO4)3 + 2Na3PO4 ====2AlPO4 (s) + 3Na2(SO4 )

AlPO4 (s) is a precipitate

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