Sodium carbonate + hydrochloriic acid -What would you observe? b) Mercury (ll) nitrate + potassium sulfide - What would you observe? c) Lithium hydroxide + sulfuric acid
Write a blanaced equations for metathesiis reactions between aqueous solutions shown in a, b, & c. Use the solubility rules to determine what the precipitate is (if it is a precipitation reaction), OR just write the equations if you have an acid-base or gas evolution metathesis reaction.
a) Sodium carbonate + hydrochloriic acid
-What would you observe?
b) Mercury (ll) nitrate + potassium sulfide
- What would you observe?
c) Lithium hydroxide + sulfuric acid
- What would you observe?
Na2CO3 + 2HCl --------2NaCl + H2O + CO2. Neutralization reaction.with slightly evolution of carbon dioxiden gas.
Hg(NO3)2+ K2S -------- Hg2S + 2KNO3. It is a precipitation reaction. Hg2S are insoluble precipitate.
Solubility rules: salts containing group 1 elements are soluble with exceptions.
2. Salts of carbonates are insoluble.
3. Salts of Nitrate ions are soluble.
4. Salts of Cl-, Br-,I-, are soluble.
5. Mostly silver salts are insoluble.
6. Hydroxide salts are slightly soluble.
7. Salts of sulfides are insoluble.
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