The freezing point of water at 1 atm pressure is ________.
A) 0 F
B) 0 K
C) 0 C
D) -273 C
E) -32 F
Question 2
Which of the following correctly represents the second ionization of calcium?
A) Ca (g) Ca+ (g) + e-
B) Ca+ (g) Ca2+ (g) + e-
C) Ca- (g) + e- Ca2- (g)
D) Ca+ (g) + e- Ca2+ (g)
E) Ca+ (g) + e- Ca (g)
Question 3
Of the following, ________ contains the greatest number of electrons.
A) P3+
B) P
C) P2-
D) P3-
E) P2+
Question 4
A sulfur oxide is 50.0 by mass sulfur. This molecular formula could be ________.
A) SO
B) SO2
C) S2O
D) S2O4
E) either SO2 or S2O4