Due at the beginning of lab * Name See CIRCLE the correct answers: Most hydroxid

Question

Due at the beginning of lab * Name See CIRCLE the correct answers: Most hydroxide salts are SOLUBLE INSOLUBLE in water. The product of the reaction Cu(NO_3)_2 + excess ammonia is: Cu(OH)_2 Cu(NH_3)_4^2+ The product of the reaction A1(N0_3)_3 + excess NaOH is: Al(OH)_3 M(OH)_4- When aqueous HCI is added to solid magnesium carbonate, the solid dissolves with bubbling. Write a balanced net-ionic equation that describes this reaction. (2p) When aqueous sodium hydroxide is added to an aqueous solution of iron(lY) nitrate, a brown, gelatinous precipitate is formed Write a balanced net-ionic equation for this reaction.

Explanation / Answer

a. correct choices

a. Most hydroxides are = insoluble in water

b. The product of reaction Cu(NO3)2 + NH3(ex) is = Cu(NH3)4^2+

c. The product of the reaction Al(NO3)3 + NaOH(ex) is = Al(OH)4^-

2. When HCl (aq) is added to MgCO3.

Net ionic equation,

CO3^2- + 2H+ <==> CO2 + H2O

CO2 is evolved as a gas, which is seen bubbling.

3. When NaOH(aq) is added to Fe(NO)3(aq).

Net ionic equation,

Fe3+ + 3OH- ---> Fe(OH)3

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