9.4 Compound Names and Formulas Review

Questions and Answers

What kind of compound is P2Cl8?

Ionic

Covalent or Molecular (correct)

Metallic

What is the name of P2Cl8?

Diphosphorus octachloride

What kind of compound is Fe(C2H3O2)3?

Organic

Molecular

Ionic (correct)

Covalent

What is the name of this compound: Fe(C2H3O2)3?

Iron (III) acetate Signup and view all the answers

What kind of compound is H3N?

Covalent or Molecular Signup and view all the answers

What is the name of this compound: H3N?

Trihydrogen nitride Signup and view all the answers

What kind of compound is NH4OH?

Ionic Signup and view all the answers

What is the name of this compound: NH4OH?

Ammonium hydroxide Signup and view all the answers

How many iron (II) ions combine with oxygen to form iron (II) oxide?

1 Signup and view all the answers

What is the ionic charge of the zirconium ion in zirconium oxide, ZrO2?

+4 Signup and view all the answers

What is the charge of the cation in Fe2(SO4)3?

+3 Signup and view all the answers

What is the charge of the chloride ion?

-1 Signup and view all the answers

Which of the following is an oxyacid?

H2CO3 Signup and view all the answers

What is the stock system and the acid name for HClO?

Hydrogen hypochlorite; Hypochlorous acid Signup and view all the answers

What is another name for cuprous nitrate?

Copper (I) nitrate Signup and view all the answers

What is the formula for stannic oxide?

SnO2 Signup and view all the answers

What is the correct name for Sn3(PO4)2?

Tin (II) phosphate Signup and view all the answers

What is the correct name for N2O5?

Dinitrogen pentoxide Signup and view all the answers

What does an '-ate' ending in a polyatomic ion mean?

It indicates that oxygen is in the formula. Signup and view all the answers

What is the correct formula for calcium hydrogen phosphate?

CaHPO4 Signup and view all the answers

Suppose you encounter a chemical formula with H as the cation. What do you know about this compound immediately?

The compound is an acid. Signup and view all the answers

What is the correct name for the compound CoCl2?

Cobalt (II) chloride Signup and view all the answers

What is the correct formula for sulfur hexafluoride?

SF6 Signup and view all the answers

What is produced when a base is dissolved in water?

Hydroxide ions Signup and view all the answers

What is the formula for hydrosulfuric acid?

H2S Signup and view all the answers

What is the formula for phosphoric acid?

H3PO4 Signup and view all the answers

When the name of an anion that is part of an acid ends in -ite, the acid name includes the suffix _______

ous Signup and view all the answers

What is the stock system name and the acid name for H2SO3?

Dihydrogen sulfite; Sulfurous acid Signup and view all the answers

Which of the following shows both the correct formula and correct name of an acid?

H3PO4, phosphoric acid Signup and view all the answers

When dissolved in water, acids produce __________

hydrogen ions Signup and view all the answers

What makes a compound a binary covalent or binary molecular compound?

It is a compound made of two nonmetal elements bound together. Signup and view all the answers

Nona is the prefix that means ____________

9 Signup and view all the answers

In naming a binary molecular compound, the number of atoms of each element present in the molecule is indicated by _________

a prefix that represents the number of atoms in the subscript. Signup and view all the answers

What is the ending for the names of all binary compounds, both ionic and molecular?

ide Signup and view all the answers

Molecular compounds are usually ____________.

composed of two or more nonmetallic elements Signup and view all the answers

What is the correct formula for potassium sulfite?

K2SO3 Signup and view all the answers

What is the charge of the anion in PbO?

-2 Signup and view all the answers

What is the charge of the cation in PbO?

+2 Signup and view all the answers

What is the formula of stannic fluoride?

SnF4 Signup and view all the answers

What is the charge of iron in Fe2S3?

+3 Signup and view all the answers

Give the charge of the ions in Sn3N4.

Sn +4 and N-3 Signup and view all the answers

What is the stock system name of Sn3N4?

Tin (IV) nitride Signup and view all the answers

What is the name of this compound: Mn2O3?

Manganese (III) oxide Signup and view all the answers

What is the stock system name and the acid name for HF?

Hydrogen fluoride; Hydrofluoric acid Signup and view all the answers

What is the stock system name and the classical name of Pb(ClO4)4?

Lead (IV) perchlorate; Plumbic perchlorate Signup and view all the answers

What is the name of N3O7?

Trinitrogen heptoxide Signup and view all the answers

What is the formula for hypobromous acid?

HBrO Signup and view all the answers

What is the formula for titanium (II) carbonate?

TiCO3 Signup and view all the answers

What is the formula for ferric hypoiodite?

Fe(IO)3 Signup and view all the answers

What is the name of BaHPO3?

Barium hydrogen phosphite or barium biphosphite Signup and view all the answers

Study Notes

Compound Types and Names

P2Cl8 is a covalent or molecular compound known as diphosphorus octachloride.
Fe(C2H3O2)3 is classified as ionic and is named Iron (III) acetate.
H3N is also a covalent or molecular compound, known as trihydrogen nitride, and its acid form is hydronitric acid.
NH4OH is ionic and functions as a base, named ammonium hydroxide.

Ionic Charges and Compounds

Iron (II) oxide, FeO, forms with one iron (II) ion combining with oxygen.
In zirconium oxide (ZrO2), the zirconium ion has a +4 charge while the oxide ion has a -2 charge.
The cation in Fe2(SO4)3 is Fe with a charge of +3, balancing the total charge of three sulfate ions (-6).

Acid and Base Recognition

Chloride ion has a charge of -1 and is part of Group 7A.
H2CO3 is an oxyacid since it contains hydrogen and a polyatomic ion.
HClO is named hydrogen hypochlorite in the stock system and hypochlorous acid as an acid.

Naming and Formulas

Cuprous nitrate corresponds to copper (I) nitrate.
The formula for stannic oxide is SnO2, determined from Sn+4 and O-2 charges.
Sn3(PO4)2 is named tin(II) phosphate.
N2O5 is identified as dinitrogen pentoxide.

Acid Naming and Formulas

The suffix "-ate" in a polyatomic ion signifies the presence of oxygen.
Calcium hydrogen phosphate is represented as CaHPO4.
Compounds with H as the cation indicate they are acids.
CoCl2 is properly named cobalt (II) chloride, while sulfur hexafluoride is SF6.

Chemical Solutions and Properties

Bases dissolved in water yield hydroxide ions.
Hydrosulfuric acid has the formula H2S, while phosphoric acid is H3PO4.

Polyatomic Ions and Naming

When an anion in an acid ends in -ite, the acid name will end with "ous."
H2SO3 is labeled as dihydrogen sulfite in the stock system and sulfurous acid as its acid name.

Common Errors and Clarifications

H3PO4 correctly matches its formula with the name phosphoric acid.
Acids produce hydrogen ions (H+) when dissolved in water.
Binary covalent compounds consist of two nonmetal elements.
The prefix "nona" denotes the number 9 in chemical nomenclature.

Additional Names and Formulas

Potassium sulfite is represented by K2SO3.
In PbO, the anion (oxide) carries a -2 charge, and lead (II) has a +2 charge.
Stannic fluoride is indicated by SnF4, while iron in Fe2S3 carries a +3 charge.
In Sn3N4, tin has a +4 charge and nitrogen a -3 charge, with the stock system name being Tin (IV) nitride.

Transition Metals and Classical Names

Mn2O3 is named manganese (III) oxide, emphasizing the use of roman numerals for transition metals.
HF is known as hydrogen fluoride and hydrofluoric acid.
Pb(ClO4)4 is recognized as lead (IV) perchlorate or plumbic perchlorate.
N3O7 is known as trinitrogen heptoxide and hypobromous acid has the formula HBrO.
Titanium (II) carbonate is written as TiCO3, while ferric hypoiodite corresponds to Fe(IO)3.
BaHPO3 can be designated as barium hydrogen phosphite or barium biphosphite.

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Test your knowledge of compound names and formulas with these flashcards. You'll identify the type of compounds and correctly name various chemical formulas, including covalent and ionic compounds. Perfect for students studying chemistry!