It states in the rules that we are ethically apposed to giving you the answers to questions, so unfortunately i can only guide you in the right direction.
From the level of these questions, i'm assuming that the other question was regarding the use of sp3 hybrids, and not molecular orbital theory.
2) Work out the length of the longest carbon chain, all other "side chains" to this chain are added as prefixes to the name e.g. ethyl, propyl. I'm not sure what it means by "draw out the full structures", as far as i am concerned, they are the full structures, but i would think that they mean fill in the carbons and hydrogens for each structure, for example:
To identify cis or trans isomers use the following rule:
Largest groups on the same side - cis
Largest groups on apposing sides -trans
This only applies for alkenes with one hydrogen on each carbon.
3) E/Z notation. Assign a priority to each group on the double bond based on the atomic number of the attached atom (1 highest priority). If two attached atoms are the same, then look to the next atoms in each group to see whether the group is higher priority, for example -CH2OH is higher priority than -CH3. If the two highest priorities are on the same side of the double bond then the isomer is Z (easy way to remember "Zame Zide", but actually stands for zusammen (german)), if they are on the opposite sides, then the isomer is E.
4) First reaction is Palladium Catalysed Hydrogenation, second is hydration of alkenes (see electrophilic addition to alkenes).
If you need something expanding, just ask.