Question

1a) Balance following chemica reaction

K3PO4(aq) + NiCl2(aq) --> Ni3(PO4)2(s) + KCl(aq)

b) Now write the complete ionic equation

c)Write the net ionic equation

2a) Balance following chemical reaction

K2SO4(aq) + CaI2(aq) --> CaSO4 (s) + Kl(aq)

b)write complete ionic equation

c) write net ionic equation

3. When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? C7H16O(g)+O2(g)-> CO2(g)+H2O(g)

Answer 1

a)

molecular

2K3PO4(aq) + 3NiCl2(aq) --> Ni3(PO4)2(s) + 6KCl(aq)

b)

ionc

6K+(aq) + 2PO4-3(aq) + 3Ni+(aq) 6Cl-(aq) --> Ni3(PO4)2(s) + 6K+(aq) + 6Cl-(aq)

c) net ionic

2PO4-3(aq) + 3Ni+(aq) --> Ni3(PO4)2(s)

2)

a)molecular

K2SO4(aq) + CaI2(aq) --> CaSO4 (s) + 2Kl(aq)

b)

ionic

K2+2(aq) + SO4-2(aq) + Ca+2(aq) + 2I-(aq) --> CaSO4 (s) + 2K+2(aq) + 2l-(aq)

c) net ionic

SO4-2(aq) + Ca+2(aq)--> CaSO4 (s)

3. When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? 2C7H16O(g)+21O2(g)-> 14CO2(g)+16H2O(g)

n = 21 since we use integers