What orbital hybridization is expected for the central atom in a molecule with a trigonal planar geometry?
A) sp
B) sp2
C) sp3
D) None of the above
Question 2
The net ionic equation for the dissolution of zinc metal in aqueous hydrobromic acid is ________.
A) Zn (s) + 2Br- (aq) ZnBr2 (aq)
B) Zn (s) + 2HBr (aq) ZnBr2 (aq) + 2H+ (aq)
C) Zn (s) + 2HBr (aq) ZnBr2 (s) + 2H+ (aq)
D) Zn (s) + 2H+ (aq) Zn2+ (aq) + H2 (g)
E) 2Zn (s) + H+ (aq) 2Zn2+ (aq) + H2 (g)
Question 3
The source(s) of sulfur dioxide in the atmosphere is/are ________.
A) volcanic gases
B) forest fires
C) bacterial action
D) fossil-fuel combustion
E) all of the above