3. How many moles are in 1.838 liters of nickel, Ni? xby 224L MOLES LITERS by 22.4L MOLES 4. How many moles are in 1.20x10 atoms of nickel? by 6.02 x 10 ATOMS MOLICULES +by 6.02 x 10 PARIOES UNITS 5. If 13.19 moles of nickel are needed to be used to make joint replacement materials, how many grams of nickel is needed? MASS GRAMS

How many O2 molecules are needed to react with 2.02 g of S? Express your answer numerically in units of molecules.

4.What ratio do you use when converting from moles of reactants to moles of product? a.Molar Mass b.Mass Ratio c.Mole Ratio d.None of these

How many moles of NaCl, if mixed with excess Pb2+ ions in solution, would be needed to form 32.6 g of PbCl, ? moles NaCl: mol

Balance the following equations. a. _____NO +______O2 =    _________NO2 b._____KCIO3 = _______KCI+________O2 c._____NH4CI +_______Ca(OH)2 =  ______CaCI2+______NH3+_______H20 d._____NaNO3+_______H2SO4 +________Na2So4+_______HNO3 e.______PbS+_______H2O2 = ________PbSO4+__________H2O f.______AI2(SO4)3+_______BaCI2 =  ________AIC3+_________BaSO4

Indicate how many moles of the second reactant would be required to react exactly with 0.275 mole of the first reactant

Mow nany of cach atom are in the products? Mow may of cach atom are in the reactants? 2 a chlorine Fe Iron 2 a dhlorine 6 Fe iron Balanced oquation silver sulfur -> silver sulfide Ag Ag SAg Ag Ag Ag Ag Ag Ag Ag Ag S. Drewmere stver, How many of cach atom are in the reactants? How many of cach atom are in the products? Ag silver S sulfur Ag silver Ssulfur Balanced equation Conservation of Mass Draw enough molecules to conserve mass in each reaction luminum bromine -> aluminum bromide +.