Questions: Classify each ionic compound as insoluble or soluble in water. Select the single best answer for each part. Note: Reference the General solubility rules for ionic compounds in water table for additional information. Part 1 of 4 K2SO4 soluble insoluble Part 2 of 4 PbBr2 soluble insoluble Part 3 of 4 Zn(OH)2 soluble insoluble Part 4 of 4 Bi(NO3)3 soluble insoluble

Classify each ionic compound as insoluble or soluble in water. Select the single best answer for each part.
Note: Reference the General solubility rules for ionic compounds in water table for additional information.

Part 1 of 4
K2SO4
soluble
insoluble

Part 2 of 4
PbBr2 soluble
insoluble

Part 3 of 4
Zn(OH)2
soluble
insoluble

Part 4 of 4
Bi(NO3)3 soluble
insoluble
Transcript text: Classify each ionic compound as insoluble or soluble in water. Select the single best answer for each part. Note: Reference the General solubility rules for ionic compounds in water table for additional information. Part 1 of 4 \[ \mathrm{K}_{2} \mathrm{SO}_{4} \] soluble insoluble Part 2 of 4 $\mathrm{PbBr}_{2}$ soluble insoluble Part 3 of 4 \[ \mathrm{Zn}(\mathrm{OH})_{2} \] soluble insoluble Part 4 of 4 $\mathrm{Bi}\left(\mathrm{NO}_{3}\right)_{3}$ soluble insoluble
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Solution

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Solution Steps

Step 1: Determine the Solubility of K2SO4\mathrm{K}_{2} \mathrm{SO}_{4}

Potassium sulfate (K2SO4\mathrm{K}_{2} \mathrm{SO}_{4}) contains the potassium ion (K+\mathrm{K}^+). According to the general solubility rules, all compounds containing alkali metal ions (such as K+\mathrm{K}^+) are soluble in water.

Step 2: Determine the Solubility of PbBr2\mathrm{PbBr}_{2}

Lead(II) bromide (PbBr2\mathrm{PbBr}_{2}) contains the lead ion (Pb2+\mathrm{Pb}^{2+}) and bromide ions (Br\mathrm{Br}^-). According to the solubility rules, most bromides are soluble, except those of lead, silver, and mercury. Therefore, PbBr2\mathrm{PbBr}_{2} is insoluble in water.

Step 3: Determine the Solubility of Zn(OH)2\mathrm{Zn}(\mathrm{OH})_{2}

Zinc hydroxide (Zn(OH)2\mathrm{Zn}(\mathrm{OH})_{2}) contains the hydroxide ion (OH\mathrm{OH}^-). According to the solubility rules, most hydroxides are insoluble, except those of alkali metals and Ba(OH)2\mathrm{Ba(OH)_2}. Therefore, Zn(OH)2\mathrm{Zn}(\mathrm{OH})_{2} is insoluble in water.

Final Answer

\begin{align_} \text{Part 1:} & \quad \boxed{\text{soluble}} \\ \text{Part 2:} & \quad \boxed{\text{insoluble}} \\ \text{Part 3:} & \quad \boxed{\text{insoluble}} \\ \end{align_}

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