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### 15 Cards in this Set

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 Which unit is most analogous to a mole? A= a pound B= a dozen C= a degree Fahrenheit D= a fluid ounce E= a mile B= a dozen Balance the following equation A= B10H18 + O2-->B2O3+H2O B= B10H18 + 7O2-->5B2O3 + 9H2O C= B10H18 + 19O2-->10B2O3 + 9H2O D= B10H18 + 12O2-->5B2O3 + 9H2O E= B10H18 + 9O2-->5B2O3 + 9H2O D= B10H18 + 12O2-->5B2O3 + 9H2O How many carbon atoms are there in 20 molecules of C3H8O? A= 600 B= 200 C= 3.61 x 1026 D= 1.20 x 1026 A= 600 What is the mass in grams of 0.257 mol of sucrose, C12H22O11? A= 342 g B= 7.51 x 10 to the negative 4g C= 88.0 g D= 8.80 g E= 12.5 g C= 88.0 g Balance the following equation and indicate wheter it is a combustion, combination, or decompostion reaction: H2O2 + SO2 H2SO4 A= H2O2 + SO2 H2SO4 combination reaction B= 2H2O2 + SO2 H2SO4 combination reaction C= 2H2O2 + SO2 H2So4 decompostion reaction D= H2O2 + SO2 H2SO4 decompostion reaction A= H2O2 + SO2 H2SO4 combination reaction Calculate the percentage f carbon present in cadaverine, C5H14N2, a compound present in rotting meat. A= 67.4 percent C B= 58.8 percent C C= 51.7 percent C D= 68.2 percent C B= 58.8 percent C What is the empirical formula of a compound that contains 7.989 g of carbon and 2.011 g of hydrogen? A= C2H5 B= C3H C= C8H2 D= CH3 E= C2H6 D= CH3 How many moles of H2O are produced when 2.5 mol of O2 react according to the following equation: C3H8 + 5O2-->3CO2 + 4H2O A= 2.5 B= 3.0 C= 4.0 D= 2.0 D= 2.0 You are setting up a reaction between two chemicals that react according to the equation 3 A + 4 B products. If you start with 1.00 mole each of both A and B, which chemical will be in excess at the end, and by how much(assuming the reaction goes to completion)? A= A is in excess by 0.333 mol B= A is in excess by 0.250 mol C= B is in excess by 0.250 mol D= B is in excess by 0.333 mol E= Neither A nor B is in excess, because the reaction "goes to completion" B= A is in excess by 0.250 mol Based on the following structural formula, calculate the percentage of carbon present. (CH2CO)2C6H3(COOH) A= 67.4 percent B= 66.7 percent C= 76.7 percent D= 64.7 percent D= 64.7 percent For the reaction Fe(CO)5 + 2PF3 + H2-->Fe(CO)2(PF3)2(H)2 + 3CO, how many moles of CO are produced from a mixture of 5.0 mol Fe(CO)5, 8.0 mol PF3, and 6.0 mol H2? A= 15 mol B= 5.0 mol C= 18 mol D= 6.0 mol E= 12 mol E= 12 mol Balance the following equation and indicate wheter it is a combustion, combination, or decomposition reaction: Li + N2-->Li3N A= Li + N2 3Li3N, combination reaction B= 6Li + N2 2LiN, combustion reaction C= 6Li + N2 2Li3N, decomposition reaction D= 6Li + N2 2Li3N, combination reaction E= Li + N2 3Li3N, decompostion reaction D= 6Li + N2 2Li3N, combination reaction Determine the approximate formula weigh of the following: Ca(C2H3O2)2 A= 99 B= 69 C= 152 D= 94 E= 158 E= 158 Balance the following euqation: Al + Cr2O3-->Al2O3 + Cr A= 2Al + Cr2O3-->Al2O3 + Cr B= Al + Cr2O3-->Al2O3 + 2Cr C= 4Al + 2Cr2O3-->2Al2O3 + 4Cr D= 2Al + Cr2O3-->Al2O3 + 2Cr D= 2Al + Cr2O3-->Al2O3 + 2Cr What mass of silver chloride can be made from the reaction of 4.22 g of silver nitrate with 7.73 g of aluminum chloride? (Be sure to balance the reaction.) AgNO3 + AlCl3-->Al(NO3)3 + AgCl A= 12.7 g B= 10.7 g C= 24.9 g D= 3.56 g D= 3.56 g