Given one of the starting materials and end product for each of the following reactions, show all reactants, reaction conditions in brackets (where known) and products.

sorry i know this question has been posted already, but i need help. could you explain to me how to do them.

acetic acid from chloroethane
ethanoic acid from calcium carbide
2-iodopropane from acetone
1-butanol reacts in the presence of concentrated sulfuric acid
ethyl ethanoate from ethane
isopropylbenzene from benzene