Chem homework is giving me a hard time..please help!

timer Asked: Mar 11th, 2013

Question Description

1.Aluminum and Oxygen react to form 1 mol of AL2O3. Before you can find out how many moles of Oxygen reacted, what do you need to do?

2. How are coefficients in a balanced equation related to mole ratios?

3. The unbalanced equation for a reaction is Na2 O+ H2 O= NaOH. Write two mole ratios comparing moles of NaOH and moles of Na2 O.

4. Chose one of the ratios you wrote for question 3. Then write a stoichiometry problem that would use it.

Thanks,it means a lot! 

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