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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