Chemistry help!!!!!!!!!!!?

Make a chart and define the following reactions using the following 3 examples methods.
Wrie out in letter(a,b,c), Symbol(Na,Cl,O) An name form(sodium,chloride,oxygen) A direct combination b decompition C single replacement and D double replacement

Ok, you make a chart with four reaction types, and give examples.

Such as:
Double replacement
ab+cd>>ad + cd
Sodiumsulfate + Zinc chloride>>zinc sulfate + aodium chloride
Na2SO4 + ZnCl2 >>ZnSO4 + NaCl You may want to balance that.

then to the other three reaction types.