Chem Chapter 7
What is the formula for the compound formed by aluminum(III) and the sulfate ion, SO42-?
Al2(SO4)3
The compound given in its empirical formula form is
Al2S3
The correct formula for calcium hydroxide is
Ca(OH)2.
A Base (opposite of an Acid) will always have 1 or more CN-1 ions in it.
False
A single unit of an ionic compound is referred to as a molecule.
False
Lithide is the name of the cation formed when lithium loses an electron.
False
Which is the correct name for the compound FeS?
Iron (II) Sulfide
The correct formula for magnesium hydroxide is
Mg(OH)2.
What is the correct formula for the compound formed between magnesium and the phosphate ion?
Mg3(PO4)2
Which is the correct formula for the compound Manganese (III) Fluoride?
MnF3
Which is the correct name for the compound Mo2(S2O3)5?
Molybdinum (V) Thiosulfate
The correct formula AND corresponding correct name of a possible molecular compound is
OF2- oxygen difluoride.
What is the formula for the compound formed by lead(II) ions and chromate ions, CrO42-?
PbCrO4
Which compound is probably molecular?
SCl2
What is the formula for the compound formed by tin(IV) and the chromate ion, CrO42-?
Sn(CrO4)2
Polyatomic ions are particles made of one or more different kinds of atoms held together that act as a single unit.
True
Name the compound Ni(ClO3)2.
nickel(II) chlorate
The correct formula for ammonium dichromate is
(NH4)2Cr2O7.
The ions combined to form a compound are NH4+ and P3-. The correct formula for the compound would be
(NH4)3P.
The correct formula for ammonium phosphate is
(NH4)3PO4.
Group 13 elements tend to acquire which charge when they form ions?
+3
Which is the charge that results when oxygen becomes an ion?
-2
Based on the periodic table shown, elements from columns B and F will combine in which ratio?
1B:1F
The formula for iron(III) oxide, Fe2Cl3, shows that one unit of the compound contains _____ iron atoms.
2
Based on the periodic table shown, elements from columns B and E will combine in which ratio?
3B2E
Methane gas, CH4, is an example of
A molecular compound
Which is the correct name for the compound (NH4)2SO4?
Ammonium Sulfate
What is the formula for the compound formed by the barium ion, Ba2+, and the hydroxide ion, OH-?
Ba(OH)2
Which is the correct formula for the compound formed between beryllium and nitrogen?
Be3N2
The element that naturally exists as diatomic molecules is
Bromine
Consider the compound with the formula, Al2(C2O4)3 where the species in brackets is a complex ion. The correct formula of the polyatomic ion is
C2O4^2-.
What is the formula for the compound formed by calcium ions, Ca2+, and chloride ions, Cl-?
CaCl2
Which is the correct name for the compound Ca(ClO2)2?
Calcium Chlorite
Which of the following does NOT represent a molecular compound?
CoCl2 *
Which is the correct formula for the compound Chromium(VI) Nitrate?
Cr(NO3)6
The correct formula for copper(II) chlorate is
Cu(ClO3)2.
What is the metallic ion in the compound CuCl2?
Cu2+
Iron ions are chemically combined with sulfate ions, SO42-, to form a compound. The correct formula and the corresponding name respectively of the resulting compound can be
Fe2(SO4)3, iron(III) sulfate.
The acid in the following list is
HCH3COO(aq) *
The acid in this list is
HI(aq)
Nitric acid is a water solution of a compound in which hydrogen is combined with the anion
NO3-.
Which is the correct name for the compound Na3P?
Sodium Phosphide
If sulfur atoms and chlorine atoms bond together covalently to form SCl2, the correct name for this compound would be
Sulfur Dichloride
A sodium ion is more chemically stable than a sodium atom.
True
Elements in the s- block generally have only one common oxidation number, while d-block elements can have more than one possible oxidation number.
True
Metallic elements tend to form cations rather than anions.
True
Phosphide is the name of the anion formed when phosphorus gains three electrons.
True
The element, neon, with the electron configuration 1s2s2p, will not form a chemical bond with another element, oxygen.
True
Which is the correct name for the compound W3(AsO3)5?
Tungsten(V) Arsenite
A compound that exhibits ionic bonding is
Zn(NO3)2.
An ion and its parent atom have the same
atomic number
If calcium reacts with chlorine, the product will be called
calcium chloride.
The molecular compound CS2 is correctly named
carbon disulfide.
Which is the correct name for the compound CoCO3?
cobalt (II) carbonate
Name the compound CuCO3.
copper(II) carbonate
The formula for a chemical compound is Cu(MnO4)2. The correct name for this compound would be
copper(II) permanganate.
A cation is a negatively charged atom.
false
The correct name for H2Se(aq) is
hydro selenic acid. *
H2Te(aq) as an acid would be named
hydrotelluric acid.
Name the compound Fe(NO2)2.
iron(II) nitrite
The correct name for the compound Fe2S3 is
iron(III) sulfide.
An anion
is an ion with a negative charge.
The correct name for Pb3(PO4)2 would be
lead(II) phosphate.
Name the compound Hg2(NO3)2.
mercury(I) nitrate
The correct name for HNO3(aq) is
nitric acid.
The elements of the _____ group satisfy the octet rule without forming compounds.
noble gas
The correct name for H3PO4(aq) is
phosphoric acid
The correct name for H3PO3(aq) is
phosphorous acid
Name the compound KClO3.
potassium chlorate
The correct name for H2SO3(aq) is
sulfurous acid.
Which is true of binary ionic compounds?
they consist of atoms of only two elements
What is the name of Sn3(PO4)4?
tin(IV) phosphate
A covalent compound is most likely formed from _____.
two nonmetals
