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I suppose that could be right, anyway I'm so glad i'm not one of the markers who will have to determine which bits and pieces of the essay will get the better mark and which will be considered irrelevant lol! but to be honest I don't really mind what they do, I answered the question just as...

I'm sure it's still possible if your first related text was explored in depth enough! I think that they will have to go with the first one you wrote about though. I mean if they choose the one that would get you the most marks then that disadvantages those who answered the question correctly...

I call that 'ΔH = -mcΔT' equation Q=m.c.ΔT. I have no idea if it's any different but its just the one I have in my text book. when you find Q you can then get ΔH with Q/no of mol that way I can find the mass required of fuel to heat the water. There have been a couple of questions that are...

The higher up it is on the table the easier it is for it to oxidise and the lower the easier it is for it to undergo reduction. It doesnt have anything really to do with the number associated to the metal.