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Author Question: Which of the following salts is insoluble in water? (Read 86 times)

futuristic

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on: Mar 21, 2021

Question 1

Which of the following reactions does not involve oxidation-reduction?

◦ CH4 + 3O2→ 2H2O + CO2

◦ Zn + 2HCl → ZnCl2 + H2

◦ 2Na + 2H2O → 2NaOH + H2

◦ MnO2 + 4HCl → Cl2 + 2H2O + MnCl2

◦ All are oxidation-reduction reactions.

Question 2

Which of the following salts is insoluble in water?

◦ Na2S
◦ K2CO3

◦ Pb(NO3)2

◦ CaCl2

◦ All of these are soluble in water.
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Marked as best answer by futuristic on Mar 21, 2021

yeungji

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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futuristic

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Reply 2 on: Mar 21, 2021
Wow, this really help

blakcmamba

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Reply 3 on: Yesterday
Excellent

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