CHM 131 quiz 5

CHM 131 quiz 5 - Question 1 1 out of 1 points When 10.0 mol...

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1 out of 1 points When 10.0 mol of calcium metal is reacted with 3.6 mol of oxygen gas, how much calcium oxide is produced? Selected Answer: 7.2 mol Correct Answer: 7.2 mol Question 2 1 out of 1 points Given the equation 3A + B --> C + D, you react 2 moles of A with 1 mole of B. Which of the following is true? Selected Answer: A is the limiting reactant because you need 3 moles of A and have 2. Correct Answer: A is the limiting reactant because you need 3 moles of A and have 2. Question 3 1 out of 1 points An unknown substance dissolves readily in water but not in benzene ( a nonpolar solvent). Molecules of what type are present in the substance? Selected Answer: polar Correct Answer: polar Question 4 1 out of 1 points An excess of Al and 9.4 mol of Br 2 are reacted according to the equation 2Al + 3Br 2 --> 2AlBr 3 How many moles of AlBr 3 will be formed assuming 100% yield? Selected Answer: 6.3 mol Correct Answer: 6.3 mol Question 5 1 out of 1 points Consider the equation: A + 3B
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This note was uploaded on 04/20/2008 for the course CHM 131 taught by Professor Mcguirk during the Spring '08 term at Central Mich..

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CHM 131 quiz 5 - Question 1 1 out of 1 points When 10.0 mol...

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