Max Carbide

Some chemistry help...?
Ok, I'm here for answers but I kept trying these questions just not getting the answer so if you could answer any of these even just one of them you'd be helping me out a lot because I'd try to pick up what you did:
With respect to
Al4 C3 + H20 --> Al (OH)3 + CH4
a) How many mol of water are needed to:
i) Consume 6 mol of aluminum hydroxide
ii) Produce 100 mol of methane
b) What mass of aluminum carbide would produce:
i) 160 g of methane?
ii) 39 g of aluminum hydroxide?
c) What volume of CH4 gas would be produced at 100 kPa pressure and 27degrees celcius if:
i) 390 g of aluminum hydroxide were produced?
ii) 180 g of water were consumed?
Again I'm not asking you to answer each one but any sort of advice clue hint whatever it is...I's appreciate...I promise I'd give as many stars as you would want (yahoo answers only lets you give a max of 5 stars =)
SORRY, I meant to say I'm NOT here for the answers....
i will help you a lil....
first balance the equation.....notice the Al on the left side is not equal to the Al on the right side. Same from the carbon and the other elements..
that is the first step
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