Need help converting these probs.....PLZ HELP!?

Question

38) equation: CO(g) +2H2 (g) >>CH3 OH (g)
B) calc the # of grams of each reactant needed to make 4.0mol CH3OH
C) how many grams of hydrogen are necessary to react w/2.85mol CO?
52)4Zn(s) + 10HNO3(aq)>>>4Zn(NO3)2 (aq) + NH4NO3(aq) +3H2O(l)
A)How many atoms of zinc react w/1.49gHNO3?
B) calc the # of grams of zinc that must react w/an excess of HNO3 to form 29.14g NH4NO3
68) write formula for each compound
A)aluminum carbonate
B)silicon dioxide
C)potassium sulfide
D) manganese(II)Carbonate
E) sodium bromide

1)3NO2 (g) + H2O (l)>>>NO (g) + 2HNO3(aq) .How many mol of water is needed to react w/8.4 mol NO2?
2)P4(s) + 6F2 (g)>>4PF (g) .How many grams of fluorine is needed 2 react w/6.20g of phosphorus?
4)according to the balanced equation for the combustion of ethane, C2H6, 2C2H6(g) + 7O(g)>>4CO2(g) + 6H2O(l), for every molecule of ethane that reacts, CHOOSE RIGHT ANSWR:
(A)2 molecules of carbon dioxide r produced (B) 3 molecules of water is produced (C)A&B D)neither

Answer 1

oh...god!! Is this ur hw? If yes, then try it by urself....otherwise go to ur teacher and ask her/him.