Chemistry Chapter 9 Test Flashcards

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Questions and Answers

Which compound contains lead(II) ion?

K2SO4

PbO (correct)

NaCl

CaCO3

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

-ide

A transition metal with more than one common charge is defined by?

Roman numerals following the name

Molecular compounds are usually?

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

Which correctly names and has the correct formula for the polyatomic ion?

Dichromate, Cr2O7^2- Signup and view all the answers

Ions formed by nonmetals in group 16 and 17?

Charge found by subtracting 8 from the group number Signup and view all the answers

What is the ionic compound for barium iodide?

BaI2 Signup and view all the answers

What is the molecular formula for sulfur hexafluoride?

SF6 Signup and view all the answers

What is an incorrectly matched prefix?

4-hepta Signup and view all the answers

What is produced when a base is dissolved in water?

Hydroxide ions Signup and view all the answers

Aluminum forms what ion?

Al3+ Signup and view all the answers

Which correct formula represents a molecular formula?

SO2 Signup and view all the answers

What is the correct name and symbol for the ion Fe^2+?

Ferrous ion Signup and view all the answers

What is the correct formula for hydrochloric acid?

HCl Signup and view all the answers

What do -ate or -ite typically indicate about a compound?

It contains a polyatomic ion Signup and view all the answers

What type of elements make up binary molecular compounds?

Two nonmetallic elements Signup and view all the answers

When hydrogen acts as a cation, it is considered what?

An acid Signup and view all the answers

Which correctly names and has the correct formula for Copper?

Copper(I) ion, Cu+ Signup and view all the answers

Which is a cation?

Ca2+ Signup and view all the answers

Which element is most likely to form an ionic compound with fluorine?

Lithium Signup and view all the answers

How are chemical formulas of ionic compounds written?

Cation on the left, anion on the right Signup and view all the answers

Which compound contains Mn^2+ ion?

Mn2O3 Signup and view all the answers

What type of compound is CuSO4?

Polyatomic ion Signup and view all the answers

What is the Stock name for Cr^3+?

Chromium(III) ion Signup and view all the answers

In naming acids, hydro- is used when the anion ends in?

-ide Signup and view all the answers

What type of ions end in -ide?

Only anions Signup and view all the answers

What is binary molecular?

PCl Signup and view all the answers

What determines if an element is a metal?

It has to lose valence electrons Signup and view all the answers

What is the name for N^3- ion?

Nitride ion Signup and view all the answers

Group 2 elements form ions by?

Losing 2 electrons Signup and view all the answers

Which correctly names and has the correct symbolism?

OH-, hydroxide Signup and view all the answers

What type of compound is sulfur hexafluoride?

Binary compound Signup and view all the answers

Which correctly names and has the correct formula for tin?

Tin(IV) bromide, SnBr4 Signup and view all the answers

What do prefixes represent in chemical formulas?

Number of atoms Signup and view all the answers

Is the statement true that a compound is a combination of anions and cations?

True Signup and view all the answers

Study Notes

Lead Compounds

Lead(II) ion is represented as PbO.

Naming Compounds

All binary compounds, whether ionic or molecular, end with the suffix -ide.

Transition Metals

Transition metals that exhibit multiple common charges are denoted by Roman numerals following their name.

Molecular Compounds

Typically consist of two or more nonmetal elements.

Polyatomic Ions

Chromate: CrO₄²⁻; Dichromate: Cr₂O₇²⁻.

Nonmetal Ions

Ions from nonmetals in groups 16 and 17 have a charge found by subtracting 8 from their group number.

Example Ionic Compounds

Barium iodide is represented as BaI₂.

Molecular Naming

Sulfur hexafluoride: SF₆.

Prefix Errors

The prefix "4" is incorrectly matched with "hepta" (which means seven).

Base Reactions

Dissolution of bases in water produces hydroxide ions.

Aluminum Ions

Aluminum forms the Al³⁺ ion.

Molecular Formulas

Example of a molecular formula: SO₂.

Ion Naming

Iron(II) ion: Fe²⁺; Iron(III) ion: Fe³⁺.

Hydrochloric Acid Formula

Hydrochloric acid is represented as HCl.

Polyatomic Indicators

The suffixes -ate or -ite typically denote the presence of a polyatomic ion.

Binary Molecular Compounds

Formed from two nonmetal elements.

Acids

When hydrogen acts as a cation, the compound is classified as an acid.

Copper Ions

Copper(I) ion is represented as Cu⁺.

Cations

Calcium ion is designated as Ca²⁺.

Ionic Compound Structure

In ionic compounds, chemical formulas are written with the cation on the left and the anion on the right.

Manganese Ions

Manganese(II) is contained within Mn₂O₃.

Compound Types

CuSO₄ is classified as a compound containing a polyatomic ion.

Chromium Ion

The Stock name for Cr³⁺ is Chromium(III) ion.

Acid Naming Conventions

The prefix "hydro-" is utilized when naming acids derived from anions ending in -ide.

Anion Identification

Ions that end with -ide are exclusively anions.

Binary Molecular Example

Example of a binary molecular compound: PCl.

Metal Definitions

An element is classified as a metal if it primarily loses valence electrons to form ions.

Nitride Ion

The ion N³⁻ is referred to as nitride.

Group 2 Elements

Form ions by losing two electrons.

Symbolism in Ion Names

Hydroxide is denoted as OH⁻; oxide ion is represented as O²⁻.

Binary Compound Classification

Sulfur hexafluoride is categorized as a binary compound.

Tin Compounds

Tin(IV) bromide is represented as SnBr₄.

Atom Representation

The number of atoms in a molecular formula is indicated by prefixes.

Compound Structure

Compounds are formed through the combination of anions and cations.

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Description

Test your knowledge of key concepts from Chapter 9 of Chemistry with these multiple choice flashcards. Covering topics such as ionic compounds, molecular compounds, and transition metals, this quiz is perfect for students preparing for exams. Engage with fundamental definitions and test your recall of important chemical principles.