Chemistry Chapter 5 Flashcards

Questions and Answers

What is the chemical name of CuBr2?

Copper bromide

Copper (I) bromide

Copper (III) bromide

Copper (II) bromide (correct)

What is the chemical name of PbO2?

Lead oxide

Lead (II) oxide

Lead (IV) oxide (correct)

Lead (III) oxide

What is the chemical formula of tin (IV) chloride?

SnCl4

Find the multivalent ionic compound(s) in the following and name its charge: CaC2O4, CH3CH2CH3, CuO, CdCO3.

CuO (Copper (II) oxide), 2+ Signup and view all the answers

Name 2 multivalent elements that have the charges of 2+ and 4+?

Manganese, lead Signup and view all the answers

What is the chemical formula of sodium phosphate?

Na3PO4 Signup and view all the answers

Is dinitrogen disulfate a polyatomic ionic compound?

False Signup and view all the answers

What is the chemical name of Be(OH)2?

Beryllium hydroxide Signup and view all the answers

What is the chemical formula of aluminum acetate?

Al(C2H3O2)3 Signup and view all the answers

What is the only polyatomic ion with a positive charge?

Ammonium (NH4+) Signup and view all the answers

Of the compounds NaCl, H2O, CH4, HCl, FeSO4, which is an univalent ionic compound?

NaCl Signup and view all the answers

What is the chemical name of the compound with the formula KCl?

Potassium chloride Signup and view all the answers

What is the chemical formula of aluminum oxide?

Al2O3 Signup and view all the answers

What is the chemical name of Ca3N2?

Calcium nitride Signup and view all the answers

How many chloride ions are needed to stabilize the 2+ charge of magnesium in the compound magnesium chloride?

2 chloride ions Signup and view all the answers

What is the state of most ionic compounds at room temperature?

Solid Signup and view all the answers

Do ionic compounds have high or low melting and boiling points?

False Signup and view all the answers

What kind of structure do ionic compounds take at solid state?

Crystal structure Signup and view all the answers

Do ionic compounds conduct electricity?

False Signup and view all the answers

Are ionic compounds hard and brittle or soft and malleable?

False Signup and view all the answers

What are ionic compounds?

Ionic compounds are made of metal cation(s) and non-metal anion(s) bonded together with ionic bonds. Signup and view all the answers

What are polyatomic ions and why are they important in ionic compounds?

Polyatomic ions are ions that are a group of atoms bonded together that act as one single ion. Signup and view all the answers

What are multivalent ions?

Multivalent ions are ions of metals that can have different charges when present in an ionic compound. Signup and view all the answers

Study Notes

Ionic Compounds and their Properties

Copper (II) bromide is represented by the formula CuBr2, indicating a divalent copper ion.
Lead (IV) oxide is denoted by PbO2, where lead has a charge of 4+.
Tin (IV) chloride is represented as SnCl4, where tin carries a charge of 4+.
Copper (II) oxide (CuO) is a multivalent ionic compound with copper having a charge of 2+.

Multivalent Elements

Manganese, platinum, tin, lead, and polonium can exhibit oxidation states of 2+ and 4+.
Be(OH)2 is identified as beryllium hydroxide.

Chemical Formulas and Names

Sodium phosphate has the formula Na3PO4, consisting of sodium cations and phosphate anions.
Aluminum acetate's chemical formula is Al(C2H3O2)3, containing aluminum cations and acetate anions.
Aluminum oxide is represented as Al2O3, with aluminum in a 3+ state.
Calcium nitride is denoted by the formula Ca3N2, reflecting calcium's 2+ charge.

Ionic Compounds Characteristics

Magnesium chloride requires two chloride ions to balance magnesium's 2+ charge.
Ionic compounds typically exist as solids at room temperature and possess high melting and boiling points.
They adopt a crystal structure in solid form, contributing to their hardness and brittleness.
While ionic compounds do not conduct electricity as solids, they readily do so when dissolved in water.

Ionic Compounds Overview

Ionic compounds consist of metal cations and non-metal anions held together by ionic bonds.
Polyatomic ions are groups of bonded atoms acting as a single ion, crucial for the formation of ionic compounds.
Multivalent ions refer to metal ions capable of exhibiting multiple charges in different ionic compounds.

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Test your knowledge of chemical compounds and their names with these flashcards from Chemistry Chapter 5. Identify multivalent ionic compounds and understand their charges. Perfect for quick revision and reinforcement of key concepts in chemistry.