Which pair of reactants would you use to prepare manganese() sulfide by a reaction between ions in solution? ( )
A. MnSO4 and ZnS
B. MnCO3 and Na2S
C. MnCl2 and Na2S
D. MnCl2 and Na2SO4
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Which sample of a gas would follow the ideal gas equation most closely? ( )
A. one at 1 atm and 0 oC
B. one at 1 atm and 100 oC
C. one at 100 atm and 0 oC
D. one at 100 atm and100 oC
What is the approximate ratio of the effusion rates between O2 and H2 gas? ( )
A. 16:1
B. 4:1
C. 1:4
D. 1:16
Electrons are lost by the ( )
A. oxidizing agent as it undergoes oxidation
B. oxidizing agent as it undergoes reduction
C. reducing agent as it undergoes oxidation
D. reducing agent as it undergoes reduction
How many orbitals are there in the n = 6 shell of an atom? ( )
A. 6
B. 13
C. 36
D. 72
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