1. Classify HClO4 as a strong, weak, or nonelectrolyte, and briefly justify your

ID: 994470 • Letter: 1

Question

1. Classify HClO4 as a strong, weak, or nonelectrolyte, and briefly justify your answer.

2. Classify FeCO3 as a strong, weak, or nonelectrolyte, and briefly justify your answer.

3. Classify CH3CO2H as a strong, weak, or nonelectrolyte, and briefly justify your answer.

4. Write and balance the molecular form of the aqueous reaction between Ca(OH)2 and Al(NO3)3.

5. Given the reaction below in molecular form, write the ionic and net ionic equations.
2 NH3(aq) + H2SO4(aq) (NH4)2SO4(aq)

6. Given the reaction below in molecular form, write the ionic and net ionic equations.
2 Al(s) + 3 H2SO4(aq) Al2(SO4)3(aq) + 3 H2(g)

7. Complete the missing physical states for the following reaction. Is it a precipitation reaction?
Pb(NO3)2( ) + Na2SO4( ) PbSO4( ) + 2 NaNO3( )

8. Complete the missing physical states for the following reaction. Is it a precipitation reaction?
Ca(OH)2( ) + H2SO4( ) CaSO4( ) + 2 H2O(l)

1. HClO4 is strong acid.so it is strong electolyte.

2.FeCo3 is salt. it is strong electrolyte

3. CH3COOH is weak acid. It is weak electrolyte

4. 3Ca(OH)2 (aq)+ 2Al(NO3)3(aq) ------> 3Ca(NO3)2(aq) + 2Al(OH)3 (s)

5.NH3(aq) + H2SO4(aq) (NH4)2SO4(aq)

NH3(aq) + 2H++SO42-(aq) 2(NH4)+ +SO42-(aq)

NH3(aq) + 2H+ ------> 2NH4+ net ionic equation

6. Al(s) + 3 H2SO4(aq) Al2(SO4)3(aq) + 3 H2(g)

Al(s) + 6 H+(aq) + 3SO42-(aq) 2Al+3(aq) +3(SO4)2-(aq) + 3 H2(g)

removal of spectator ions to get net ionic equation

Al(s) + 6H+ -------> 2Al+3 + 3H2(g) net ionic equation

7. Pb(NO3)2(aq ) + Na2SO4( aq) PbSO4( s) + 2 NaNO3(aq )

PbSO4 is precipitate

8.Ca(OH)2( aq) + H2SO4( aq) CaSO4(s ) + 2 H2O(l)

CaSO4 is precipitate

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