Chemmy

1) Ni2+(aq) + NH3(aq) + H2O (l) ---> Ni(OH)2 (s) + NH4+(aq)

2) Cu2+(aq) + NH3(aq) + H2O (l) ----> Cu(OH)2 (s) + NH4+(aq)

3) Ni(OH)2 (s) + NH3 (aq) -----> Ni(NH3)6 2+(aq) + OH- (aq)

4) Cu(OH)2 (s) + NH3 (aq) ------> Cu(NH3)6 2+ (aq) + OH- (aq)

5) Ni 2+ (aq) + OH- (aq) --------> _______________

6) Cu2+ (aq) + OH- (aq) --------> _______________

Why is it when you mix DI water and Ehtyl alcohol you get an exothermic reaction BUT

when you add ethyl alcohol FIRST then DI water then you get no reaction???

Does it have to do with density??

AB + CD --> AD + CB

Why are the products not AC and BD? And why are they not DA and BC?

Write the molecular, iconic and net equation for the following:

1) FeCl3 + NaOH

2) FeCl3 + NH3

3) FeCl3 + H2SO4

4) NiCl2 + Na2CO3

5) NiCl2 + AgNO3

6) Na2CO3 + HCl

7) NH3NO3 + NaOH

8) CuSO4 + Na3PO4

9) ZnSO4 + (NH4)2S

10) NiCl2 + (NH4)2S

11) H2SO4 + NaOH

NaHCO3 + Ca(H2PO4)2 ---> Na2HPO4 + CaHPO4 + CO2 + H2O

The unbalanced chemical equation for this reaction is:

NaCl (aq) + H2O (l) ---> NaOH (aq) + H2 (g) + Cl2 (g)

a) balance the equation

b) what weight of sodium chloride would be consumed in the production of 25 metric tons of chlorine? (1 metric = 1000 kg)

Iron oxides found in iron ores can be reduced to metallic iron when reacted with carbon monoxide. The equation is: Fe2O3 + 3CO ---> 2Fe + 3CO2

a) How many kg of elemental iron can be formed if 16.0 kg of Fe2O3 is reacted with 10kg CO?

b) How many kg of CO2 will be produced in the reaction described in question above?

c) 16.0 kg Fe2O3 + 10 kg CO = 26 kg reactants

11.2 kg Fe + 13.2 kg CO2 = 14.4 products

EXPLAIN this apparent inconsistency in the conservation of mass.

1) Write Balanced molecular equation and..

2) Ideintify as Precipitation, acid-base, neutralization, or decomposition, or NO reaction.

A) 1) HNO3 + KC2H3O2 -->

2) No reaction?

B) 1) Mg(ClO3)2 + Fe2(SO4)3 --->

2) ___

C) 1) H3PO4 + NH3 ---->

2) ___

D) 1) Ba(OH)2 + H2SO4 ---->

2) _____