Questions of the Day Set #6
#62
Which compound contains ionic bonds?
(A) N2O
(B) CO
(C) Na2O
(D) CO2
#64
Which combination of atoms can form a polar covalent bond?
(A) H and H
(B) N and N
(C) H and Br
(D) Na and Br
#66
The bond between sulfur and chlorine in an SCl2 molecule is
(A) ionic, because electrons are transferred
(B) covalent, because electrons are transferred
(C) ionic, because electrons are shared
(D) covalent, because electrons are shared
#68
What are the coefficients when the following equation is correctly balanced?
__ Cl2 + __ AlBr3 --> __ AlCl3 + __Br2
(A) 1, 2, 1, 2
(B) 3, 2, 3, 2
(C) 3, 2, 2, 3
(D) 2, 3, 3, 2
#70
Given the balanced equation: CH4 + 2 O2 --> CO2 + 2 H2OHow many moles of water are produced when 2.50
moles of methane (CH4) are completely reacted?
(A) 2.50
(B) 1.25
(C) 5.00
(D) 7.50
#72
Given the reaction: 4 Al (s) + 3 O2 (g) --> 2 Al2O3 (s)
What is the minimum number of grams of oxygen gas required to produce 1.00 mole of aluminum oxide?
(A) 32.0 g
(B) 48.0 g
(C) 96.0 g
(D) 192 g