Question 1

What is the correct formula for the ionic compound formed from the cation X2+ and the anion Y- that results in zero overall charge?

Accepted Answer

A) X2Y 
B) XY 
C) XY2 
D) X2Y2 
A) X2Y 
B) XY 
C) XY2 
D) X2Y2

Question 2

Elements in group 2A form ions with a +2 charge.

Accepted Answer

A) True 
 B)False

Question 3

The electrons in the outermost occupied shell of an atom are called the ________ electrons.

Accepted Answer

The answer of The electrons in the outermost occupied shell...

Question 4

What is the symbol for the ion formed by magnesium?

Accepted Answer

A) Mg2- 
B) Mg3+ 
C) Mg2+ 
D) Mg4- 
A) Mg2- 
B) Mg3+ 
C) Mg2+ 
D) Mg4-

Question 5

Neutral atoms always contain an equal number of protons,neutrons,and electrons.

Accepted Answer

A) True 
 B)False

Question 6

An ionic compound is a pure substance formed by chemically combining two or more nonmetal atoms together.

Accepted Answer

A) True 
 B)False

Question 7

The formula for stannic fluoride is SnF4.

Accepted Answer

A) True 
 B)False

Question 8

What is the charge of the ions formed by group 7A elements?

Accepted Answer

A) +1 
B) +7 
C) -1 
D) -7 
A) +1 
B) +7 
C) -1 
D) -7

Question 9

The formula for the ammonium ion is ________.

Accepted Answer

The answer of The formula for the ammonium ion is...

Question 10

Ionic compounds are usually solids at room temperature.

Accepted Answer

A) True 
 B)False

Question 11

The (II)in the name of the ionic compound lead (II)acetate specifically indicates that there are two lead ions present in the compound.

Accepted Answer

A) True 
 B)False

Question 12

Ionic compounds are composed of individual molecules,discrete groups of atoms that share electrons.

Accepted Answer

A) True 
 B)False

Question 13

What is the charge on the nickel ion in the compound NiCl2?

Accepted Answer

A) +1 
B) +2 
C) +3 
D) +4 
A) +1 
B) +2 
C) +3 
D) +4

Question 14

A main group element is especially stable when it possesses eight total electrons.

Accepted Answer

A) True 
 B)False

Question 15

A polyatomic ion is an ion that forms more than one charge.

Accepted Answer

A) True 
 B)False

Question 16

What is the chemical formula for the ionic compound calcium selenide?

Accepted Answer

A) Ca2Se2 
B) CaSe 
C) CaSe2 
D) Ca2Se 
A) Ca2Se2 
B) CaSe 
C) CaSe2 
D) Ca2Se

Question 17

What is the formula for the ionic compound formed when magnesium and oxygen combine?

Accepted Answer

A) MgO 
B) MgO2 
C) Mg2O 
D) Mg2O2 
A) MgO 
B) MgO2 
C) Mg2O 
D) Mg2O2

Question 18

What is the correct formula for the ionic compound formed from the cation X3+ and the anion Y2- that results in zero overall charge?

Accepted Answer

A) X2Y3 
B) X2Y 
C) X3Y2 
D) XY3 
A) X2Y3 
B) X2Y 
C) X3Y2 
D) XY3

Question 19

A cation is positively charged,and has more electrons than the neutral atom.

Accepted Answer

A) True 
 B)False

Question 20

The ion symbol for the ferric ion is Fe2+.

Accepted Answer

A) True 
 B)False

Exam 3: Ionic Compounds

What is the correct formula for the ionic compound formed from the cation X2+ and the anion Y- that results in zero overall charge?

Elements in group 2A form ions with a +2 charge.

The electrons in the outermost occupied shell of an atom are called the ________ electrons.

What is the symbol for the ion formed by magnesium?

Neutral atoms always contain an equal number of protons,neutrons,and electrons.

An ionic compound is a pure substance formed by chemically combining two or more nonmetal atoms together.

The formula for stannic fluoride is SnF4.

What is the charge of the ions formed by group 7A elements?

The formula for the ammonium ion is ________.

Ionic compounds are usually solids at room temperature.

The (II)in the name of the ionic compound lead (II)acetate specifically indicates that there are two lead ions present in the compound.

Ionic compounds are composed of individual molecules,discrete groups of atoms that share electrons.

What is the charge on the nickel ion in the compound NiCl2?

A main group element is especially stable when it possesses eight total electrons.

A polyatomic ion is an ion that forms more than one charge.

What is the chemical formula for the ionic compound calcium selenide?

What is the formula for the ionic compound formed when magnesium and oxygen combine?

What is the correct formula for the ionic compound formed from the cation X3+ and the anion Y2- that results in zero overall charge?

A cation is positively charged,and has more electrons than the neutral atom.

The ion symbol for the ferric ion is Fe2+.

Matter and Measurement

Atoms and the Periodic Table

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

What is the correct formula for the ionic compound formed from the cation X²⁺ and the anion Y^- that results in zero overall charge?

The formula for stannic fluoride is SnF₄.

What is the charge on the nickel ion in the compound NiCl₂?

What is the correct formula for the ionic compound formed from the cation X³⁺ and the anion Y^2- that results in zero overall charge?

The ion symbol for the ferric ion is Fe²⁺.