81) What is the chemical formula of rhenium(VII) oxide?
A) ReO7
B) ReO4
C) Re2O7
D) Re3O6
82) What is the chemical name given to the compound whose formula is N2O4?
A) nitrogen quadraoxide
B) nitrogen (IV) oxide
C) nitrogen (II) oxygen (IV)
D) dinitrogen tetraoxide
83) What is the chemical formula of a compound named ammonium sulfide?
A) NH4S
B) (NH4)2S
C) (NH4)S2
D) (NH4)2S3
84) What is the chemical formula of the compound named potassium bicarbonate?
A) KHCO3
B) K2(HCO3)
C) K(HCO3)2
D) K3HCO3
85) What is the chemical name of the compound whose formula is MgSO4?
A) magnesium sulfite
B) magnesium sulfur tetraoxide
C) magnesium sulfide
D) magnesium sulfate
86) Which of the following is not a binary compound?
A) sodium chloride
B) sodium hypochlorite
C) sodium sulfide
D) sodium hydride
87) Which of the following is a binary compound?
A) sodium perchlorate
B) sodium chlorate
C) sodium hypochlorite
D) sodium chloride
88) When a binary compound is composed of a metal and a non-metal it is called ________.
A) binary ionic
B) binary covalent
C) binary coordinate
D) either B or C
89) A binary covalent compound is composed of ________.
A) two metalloids
B) a metal and a non-metal
C) two non-metals
D) either A or C
90) Which of the following is a binary ionic compound?
A) potassium sulfide
B) phosphorus trichloride
C) sulfur hexafluoride
D) water
91) Which of the following is not a binary ionic compound?
A) lithium sulfide
B) potassium iodide
C) calcium chloride
D) hydrogen sulfide
92) Which is not a binary covalent compound?
A) CO
B) H2O
C) CaF2
D) SiO2
93) Which of the following sets is comprised exclusively of ionic binary compounds?
A) H2O, SiO2, NO
B) CoCl2, CaCO3, AlPO4
C) Co(H2PO4)2, KCl, PCl3
D) KI, Al2O3, Li2S
94) Which of the following sets is comprised exclusively of covalent binary compounds?
A) H2O, SiO2, NO
B) CoCl2, CaCO3, AlPO4
C) Co(H2PO4)2, KCl, PCl3
D) KI, Al2O3, Li2S
95) The compound H2SO3 is called ________.
A) sulfurous acid
B) sulfuric acid
C) hydrogen sulfide
D) sulfite acid
96) The compound HClO is called ________.
A) hydrochloric acid
B) hypochlorous acid
C) perchloric acid
D) hyperchloric acid
97) The compound H2CO3 is called ________.
A) carbonic acid
B) carbonous acid
C) carbonium acid
D) bicarbonic acid
98) Which of the following cations does not have a +2 charge?
A) ferrous
B) stannous
C) cobaltous
D) cuprous
99) Which of the following cations have the most positive charge?
A) cobaltic
B) ferric
C) stannic
D) mercuric
100) Which of the following cations have the least positive charge?
A) cobaltic
B) ferric
C) stannic
D) mercuric
101) Which of the following cations have the least positive charge?
A) cobaltous
B) ferrous
C) stannous
D) cuprous
102) Which of the following cations has a +2 charge?
A) cobaltic
B) ferric
C) cupric
D) stannic
103) Which of the following polyatomic ions is positively charged?
A) ammonium
B) carbonate
C) dihydrogen phosphate
D) acetate
104) Which of the following may be classified as oxyanion?
A) perchlorate
B) bromide
C) ammonium
D) chloride
105) Which of the following AQUEOUS acids does not have the -ic ending?
A) H2SO4 (aq)
B) HF (aq)
C) HCN (aq)
D) H2SO3 (aq)
106) Which of the following AQUEOUS acids does not have the -ous ending?
A) H2SO3
B) HNO2
C) HClO2
D) H2CO3
107) Which of the following may not be classified as a polyanion?
A) perchlorate
B) chlorate
C) chlorite
D) chloride
108) Which of the following polyatomic ions has a -2 charge?
A) ammonium
B) carbonate
C) dihydrogen phosphate
D) acetate
109) Which of the following polyatomic ions is the most negatively charged?
A) ammonium
B) carbonate
C) phosphate
D) acetate
110) Which of the following polyatomic ions has the least atoms per formula unit?
A) ammonium
B) carbonate
C) dihydrogen phosphate
D) acetate
111) Which of the following polyatomic ions has the most atoms per formula unit?
A) ammonium
B) carbonate
C) hydrogen phosphate
D) acetate
112) Which of the following anions has the largest number of oxygen atoms per formula unit?
A) carbonate
B) dichromate
C) hydrogen phosphate
D) perchlorate
113) Which of the following anions has the lowest number of oxygen atoms per formula unit?
A) carbonate
B) dichromate
C) hydrogen phosphate
D) perchlorate
114) Which of the following anions has its number of oxygen atoms equal to a number other
than 4?
A) permanganate
B) perchlorate
C) hydrogen phosphate
D) nitrate
115) Which of the following anions has its number of oxygen atoms equal to a number other
than 3?
A) carbonate
B) chlorate
C) dihydrogen phosphate
D) nitrate
116) Which of the following anions has its number of oxygen atoms equal to a number other
than 2?
A) chromate
B) chlorite
C) acetate
D) nitrite
117) Which of the following does not have a charge of -2?
A) carbonate
B) chromate
C) dichromate
D) nitrate
118) Which of the following does not have a charge of -1?
A) bicarbonate
B) bisulfate
C) hydrogen phosphate
D) nitrite
119) Which of the following ions has a relative ratio of oxygen atoms to the central atom that is
not a whole number?
A) dichromate
B) bicarbonate
C) permanganate
D) perchlorate
120) Identify the ion with a -3 charge.
A) phosphate
B) chlorate
C) chromate
D) ammonium
121) Identify the ion with a -2 charge.
A) phosphate
B) chlorate
C) chromate
D) ammonium
122) Identify the ion with a +1 charge.
A) phosphate
B) chlorate
C) chromate
D) ammonium
123) Identify the ion with a -1 charge.
A) phosphate
B) chlorate
C) chromate
D) ammonium
124) Identify the ion with a -4 charge.
A) carbide
B) permanganate
C) dichromate
D) nitride
125) Which anion does not have -3 charge?
A) phosphide
B) phosphate
C) chlorate
D) nitride
126) Which of the following anions has 3 oxygen atoms and a net charge of -2?
A) permanganate
B) chlorate
C) carbonate
D) nitrate
127) Which of the following anions has 2 oxygen atoms and a net charge of -1?
A) permanganate
B) chlorite
C) bicarbonate
D) nitrate
128) Which of the following anions has 2 oxygen atoms and a net charge of -1?
A) hypochlorite
B) peroxide
C) bicarbonate
D) chromate
129) Which of the following anions does not have 2 oxygen atoms and a net charge of -1?
A) sulfite
B) nitrite
C) chlorite
D) peroxide
130) Which of the following ions contains oxygen?
A) chlorite
B) cyanide
C) chloride
D) ammonium
131) Which of the following compounds contains oxygen?
A) potassium cyanide
B) calcium peroxide
C) ammonium sulfide
D) ferrous chloride
132) The H– ion is called ________.
A) hydroxide
B) hydride
C) hydranion
D) hydrogen
133) The HCO3– ion is called ________.
A) carbide
B) bicarbonate
C) carbonate
D) carboxide
134) The formula for the carbonate ion is ________.
A) CO32-
B) C2O42-
C) HCO3–
D) C22-
135) The formula Ca3N2 is called ________.
A) calcium nitrate
B) calcium nitrite
C) dicalcium trinitride
D) calcium nitride
136) Potassium dihydrogen phosphate has the formula ________.
A) KH2PO4
B) K2HPO4
C) K2H2PO4
D) K(H2PO4)2
137) The formula for hydrocyanic acid is ________.
A) HCNO
B) HCN
C) H2CN
D) H2CNO
138) CuClO is called ________.
A) cuprous chlorate
B) cupric chlorate
C) cuprous hypochlorite
D) cuprous chlorite
139) The formula for sodium acetate is ________.
A) NaC2H2O2
B) NaCH2O2
C) NaC2H3O2
D) NaC2H4O
140) The formula for sodium sulfite is ________.
A) Na2S
B) Na2SO3
C) Na2S2O3
D) Na2SO4
141) Which of the following anions has the largest number of oxygen atoms and at the same time
has the most negative charge?
A) carbonate
B) phosphate
C) permanganate
D) chromate
142) Which of the following formulas does not include a parenthesis?
A) sodium dichromate
B) ammonium carbonate
C) aluminum bicarbonate
D) magnesium dihydrogen phosphate
143) Which of the following formulas includes a parenthesis?
A) sodium dichromate
B) magnesium carbonate
C) aluminum nitrate
D) magnesium hydrogen phosphate
144) Which of the following elements does not have at least two differently charged cations?
A) magnesium
B) copper
C) cobalt
D) iron
145) Which of the following elements has at least two differently charged cations?
A) magnesium
B) calcium
C) cobalt
D) lithium
146) The electronegativity of chlorine is 3.0 while that of iodine is 2.5. The correct way of
writing the formula of a molecule composed of one chlorine and one iodine atoms and the
corresponding name are ________.
A) ClI, chloroiodine
B) ClI, chlorine monoiodide
C) ICl, iodine monochloride
D) ICl, iodochlorine
5.2 True/False Questions
1) Natural sugars are broken down into glucose in our body.
2) Water, H2O and hydrogen peroxide, H2O2, have identical properties.
3) Energy is released as two atoms, such as two hydrogen atoms, form, a bond.
4) A covalent bond is formed by the sharing of the innermost electrons.
5) When covalent bonds are broken energy is released.
6) A single bond is always represented by two electrons.
7) Elements that belong to the same group have the same number of valence electrons.
8) Covalent bonds are formed between atoms that share pairs of electrons.
9) A single, neutral chlorine atom has seven valence electrons.
10) Only helium among the Group VIIIA elements has two valence electrons.
11) Sulfur and chlorine have the same number of valence electrons.
39
12) Calcium and barium have the same number of valence electrons.
13) Elements that belong to the same period have the same number of valence electrons.
14) In its ground state, sulfur has two valence electrons and needs four more electrons to reach
the octet.
15) In its ground state, carbon has four valence electrons and needs four more to reach the octet.
16) Phosphorus usually forms three bonds.
17) Silicon has five valence electrons.
18) Hydrogen may have a +1 or -1 charge.
19) The bonding pair of electrons is the pair that makes up the bond when drawing structures.
20) Lone pairs of electrons do not count when trying to figure out if an element in a formula
obeys the octet rule.
21) Nitrogen in ammonia has three bonds and one non-bonded pair of electrons.
22) Oxygen in water has two bonds and one non-bonded pair of electrons.
23) When a hydrogen is combined with a non-metal it assumes the -1 charge.
24) Sulfur in hydrogen sulfide has two bonds and one non-bonded pair of electrons.
25) A triple bond may be considered a multiple covalent bond.