(A) hydrocarbons
(B) hydrogen
(C) water
(D) hydroxide
(E) hydrogen peroxide
- In the metric system, the prefix kilo- means
(A) 10^0
(B) 10−1
(C) 10−2
(D) 10^2
(E) 10^3
- How many atoms are in 1 mole of water?
(A) 3
(B) 54
(C) 6.02 × 10^23
(D) 2(6.02 × 10^23 )
(E) 3(6.02 × 10^23 )
- Which of the following elements normally exist as monoatomic molecules?
(A) Cl
(B) H
(C) O
(D) N
(E) He
- The shape of a PCl 3 molecule is described as
(A) bent
(B) trigonal planar
(C) linear
(D) trigonal pyramidal
(E) tetrahedral
- The complete loss of an electron of one atom to another atom with the
consequent formation of electrostatic charges is referred to as
(A) a covalent bond
(B) a polar covalent bond
(C) an ionic bond
(D) a coordinate covalent bond
(E) a pi bond between p orbitals
