Chemistry Quiz 3: Naming Ionic Compounds

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Questions and Answers

What is the process for naming a binary ionic compound?

Name the metal ion, name the non-metal ion ending with 'ide', then write the name of the compound.

What is the chemical formula for Lithium Nitride?

Li3N

What is the chemical formula for silver oxide?

Ag2O

What is the chemical formula for silver iodide?

AgI Signup and view all the answers

What is the chemical formula for Calcium Iodide?

CaI2 Signup and view all the answers

What is the chemical formula for Magnesium Bromide?

MgBr2 Signup and view all the answers

What is the chemical formula for Rubidium Fluoride?

RbF Signup and view all the answers

What is the chemical formula for Aluminum Bromide?

AlBr3 Signup and view all the answers

What is the chemical formula for Gallium Iodide?

GaI3 Signup and view all the answers

What is the process for writing the formulas of binary ionic compounds?

Identify each ion and its charge, determine the total charges needed to balance positive and negative, use subscripts to write the formula. Signup and view all the answers

What is the chemical formula for Strontium Nitride?

Sr3N2 Signup and view all the answers

What is the chemical formula for Lithium Oxide?

Li2O Signup and view all the answers

What is the chemical formula for Silver Sulfide?

Ag2S Signup and view all the answers

What is the chemical formula for Barium Phosphide?

Ba3P2 Signup and view all the answers

What is the chemical formula for Sodium Nitride?

Na3N Signup and view all the answers

What does it mean if a metal is considered multivalent?

It can form ions in more than one way, having different charges. Signup and view all the answers

What is the chemical formula for Copper (I) Nitride?

Cu3N Signup and view all the answers

What is the chemical formula for Iron (II) Phosphide?

Fe3P2 Signup and view all the answers

What is the chemical formula for Manganese (II) Oxide?

MnO Signup and view all the answers

What is the chemical formula for Lead (IV) Chloride?

PbCl4 Signup and view all the answers

What is the chemical formula for Iron (III) Phosphide?

FeP Signup and view all the answers

What is the chemical formula for Tin (II) Sulfide?

SnS Signup and view all the answers

What is the chemical formula for Iron (III) Oxide?

Fe2O3 Signup and view all the answers

What is the chemical formula for Lead (IV) Fluoride?

PbF4 Signup and view all the answers

What is the chemical formula for Iron (II) Iodide?

FeI2 Signup and view all the answers

What is the chemical formula for Mercury (II) Iodide?

HgI2 Signup and view all the answers

What is the chemical formula for Mercury (I) Nitride?

Hg3N2 Signup and view all the answers

What is the chemical formula for Tin (IV) Phosphide?

Sn3P4 Signup and view all the answers

A ____________ ion is composed of more than one type of atom joined by covalent bonds.

polyatomic Signup and view all the answers

What is the chemical formula for Potassium Acetate?

KCH3COO Signup and view all the answers

What is the chemical formula for Calcium (II) Acetate?

Ca(CH3COO)2 Signup and view all the answers

What is the chemical formula for Ammonium Phosphide?

(NH4)3P Signup and view all the answers

What is the chemical formula for Ammonium Phosphate?

(NH4)3PO4 Signup and view all the answers

What is the chemical formula for Aluminum (III) Hydroxide?

Al(OH)3 Signup and view all the answers

What is the chemical formula for Potassium Chromate?

K2CrO4 Signup and view all the answers

Ionic compounds begin with or _.

metals, ammonium Signup and view all the answers

Covalent compounds begin with a .

non-metal Signup and view all the answers

If the compound is covalent use the __________ naming system.

prefix Signup and view all the answers

If the compound is ionic with only one ion charge use __.

the metal name Signup and view all the answers

If the compound is ionic with more than one ion charge use for the charge.

the Roman numeral Signup and view all the answers

If the compound is ionic, the non-metal atom ends in __________.

ide Signup and view all the answers

With polyatomic ions, pay close attention to the __________.

endings Signup and view all the answers

Study Notes

Naming Binary Ionic Compounds

Composed of positive ions (metals) and negative ions (non-metals).
Name the metal ion first; for example, in CaI2, it is "calcium."
Rename the non-metal ion by adding the suffix "ide" (e.g., iodine becomes iodide).
Combine names to form the full compound name (CaI2 = calcium iodide).

Common Binary Ionic Compounds

Lithium Nitride: Li3N
Silver Oxide: Ag2O
Silver Iodide: AgI
Calcium Iodide: CaI2
Magnesium Bromide: MgBr2
Rubidium Fluoride: RbF
Aluminum Bromide: AlBr3
Gallium Iodide: GaI3

Writing Formulas for Binary Ionic Compounds

Identify each ion and its charge before writing formulas.
Balance the positive and negative charges to determine subscripts.
For example, aluminum fluoride's formula is AlF3, derived from Al+3 and F-1 charges.

Examples of Binary Ionic Compounds Formulas

Strontium Nitride: Sr3N2
Lithium Oxide: Li2O
Silver Sulfide: Ag2S
Barium Phosphide: Ba3P2
Sodium Nitride: Na3N

Multivalent Metals

Multivalent metals can form ions with different charges (e.g., Nickel has Ni+2 and Ni+3).
Indicate the charge used in naming with Roman numerals.
Example: Copper (I) Nitride is Cu3N; its charge is specified as (I).

Examples of Multivalent Metal Compounds

Iron (II) Phosphide: Fe3P2
Manganese (II) Oxide: MnO
Lead (IV) Chloride: PbCl4
Iron (III) Oxide: Fe2O3

Polyatomic Ions

Composed of multiple atoms that are covalently bonded and carry a net charge.
Name the metal ion first, followed by the unchanged name of the polyatomic ion.
Example: Iron (II) Hydroxide: [Fe(OH)2] is named by identifying Iron (II) and Hydroxide.

Examples of Compounds with Polyatomic Ions

Potassium Acetate: KCH3COO
Calcium (II) Acetate: Ca(CH3COO)2
Ammonium Phosphide: (NH4)3P
Ammonium Phosphate: (NH4)3PO4

Key Rules for Compound Naming

Ionic compounds begin with metals or ammonium ions.
Covalent compounds start with non-metals.
Use prefixes in covalent naming to indicate the number of atoms.
For ionic compounds with a single charge, use the metal's name directly; for those with multiple charges, include the charge in Roman numerals.
Non-metal atoms in ionic compounds end in "ide."
Be cautious with polyatomic ion names due to similar endings.

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Description

Test your knowledge on naming and writing chemical formulas for binary ionic compounds. This quiz will help you understand how to name metal and non-metal ions correctly and combine them to form the right compound names.