13. For each of the following masses, calculate the amount (in mol) of the sample:
a) 7.83 g of lithium chloride, LiCl
b) 20.0 g of water, H2O
c) 1.3 x 103 g of calcium chloride, CaCl2
d) 2.79 kg of sodium hydroxide, NaOH
(1 kg = 1000 g)

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na