Hiya,
Ok, I don't know them all, but the ones I do know are:
Q2 & 4:
Fucus vesiculosus (bladder wrack). Both the same species, but one is dried out and probably dead (the black one). It can be ID'd by the paired bladders down the step which will pop if you squeeze them.
Q5 & 8:
Ascophyllum nodosum. Again, the same species but one is dead - not sure what the stuff growing on it in Q5 is though. Incidentally, the weed with serrated esges underneath it in Q5 is
Fucus serratus (serrated wrack), a lower shore species.
Q6:
Pelvetia canaliculata (channel wrack). This is an upper shore species and teh channels in the fronds help it withstand desiccation when the tide is out.
Q7: A kelp, probably
Laminaria sp. Not sure which species it is as you need to see the fronds more clearly, but it's a subtidal species which has been washed up.
I don't know the others but hopefully someone will be along soon to help out
Zan