Balancing, Types & Mole-Gram Review Worksheet Balance & determine the types of reaction: 1) Cu + O2 → Cu2O 2) Al(NO3)3 + NaOH → Al(OH)3 + NaNO3 3) C2H2 + O2 → CO2 + H2O 4) Al + CaCl2 → AlCl3 + Ca 5) NaHCO3 → Na2O + H2O + CO2 (not DR) 6) HBr + MgCO3 → MgBr2 + H2O + CO2 Determine the molar mass of the following: 4)K2SO4 174.27 g/mol 5)HgO 216.59 g/mol 6)Cu(NO3)2 187.57 g/mol 7)O2 32.00 g/mol 10)Bi(C2H3O2)3 386.13 g/mol 8)(NH4)2SO4 11)Mg3N2 132.17 g/mol 9)HC2H3O2 60.06 g/mol 100.95 g/mol 12)SiF4 104.09 g/mol Convert the following : 13) How many grams are in 3.25 moles of Mn? 178.56 g Mn 14) How many moles are in 4.15 grams of P? 0.13 mol P 15) How many grams are in 2.22 mol of Ti? 16) How many moles are in 5.62 g Kr? 106.27 g Ti 0.07 mol Kr Convert the following (molar mass needed): 17) How many grams are in 5.12 moles of KCl? 381.70 g KCl 18) How many moles are in 25.0 g Cr2O3? 0.16 mol Cr2O3 19) How many grams are in 3 mol of Fe2(SO4)3? 1199.73 g Fe2(SO4)3 20) How many moles are in 0.145 g of H-32S? Answer the following: 0.0043 mol H2S or 4.25x10 mol H2S 21) What is molar mass? What is atomic mass? 22) Which has more mass: 1 mol of Ag or 1 mol of Au? Explain.
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