Which hydrocarbon pair below has identical mass percentage of C?
A) C3H4 and C3H6
B) C2H4 and C3H4
C) C2H4 and C4H2
D) C2H4 and C3H6
E) none of the above
Question 2
Which of the following correctly represents the second ionization of copper?
A) Cu (g) Cu+ (g) + e-
B) Cu+ (g) Cu2+ (g) + e-
C) Cu- (g) + e- Cu2- (g)
D) Cu+ (g) + e- Cu2+ (g)
E) Cu+ (g) + e- Cu (g)
Question 3
Which species has 16 protons?
A) 31P
B) 34S2-
C) 36Cl
D) 80Br-
E) 16O