Question 1

Which compound below has its formula written incorrectly?

Accepted Answer

A) Al(H2CO3)3 
B) Al(H2PO4)3 
C) Ba(HCO3)2 
D) KH2PO4 
E) Ca(NO2)2 
A) Al(H2CO3)3 
B) Al(H2PO4)3 
C) Ba(HCO3)2 
D) KH2PO4 
E) Ca(NO2)2

Question 2

Four molecules of the only product formed in the incomplete equation below are needed to ensure that the equation is balanced. P4O10 + 6H2O ??  ?

Accepted Answer

A) True 
 B)False

Question 3

Which formula is incorrect because it does not represent a known ionic compound?

Accepted Answer

A) BeCl2 
B) CaI2 
C) K2S 
D) RbBr 
E) Ca2O3 
A) BeCl2 
B) CaI2 
C) K2S 
D) RbBr 
E) Ca2O3

Question 4

Elements that are part of the actinides are all composed of radioactive gases.

Accepted Answer

A) True 
 B)False

Question 5

Which formula is incorrect because it does not represent a correctly written ionic compound?

Accepted Answer

A) BaCl2 
B) Al2F3 
C) Na2O 
D) RbBr 
E) CaO 
A) BaCl2 
B) Al2F3 
C) Na2O 
D) RbBr 
E) CaO

Question 6

Write the formula for the ionic compound formed from magnesium and sulfur.

Accepted Answer

A) MgS2 
B) MgS 
C) Mg2S 
D) Mg3S2 
E) MgS3 
A) MgS2 
B) MgS 
C) Mg2S 
D) Mg3S2 
E) MgS3

Question 7

Select the examples in which the names do not correctly match the formulas of the compounds indicated.   Hint: Write the correct name of each formula without looking at the names and then compare it to the choices.

Accepted Answer

A) II only 
B) II and IV 
C) III and IV 
D) I and IV 
E) I, II and IV 
A) II only 
B) II and IV 
C) III and IV 
D) I and IV 
E) I, II and IV

Question 8

What is the name for LiHPO4?

Accepted Answer

A) lithium monohydrogen phosphate 
B) lithium hydrogen phosphoric acid 
C) lithium hydrogen phosphorus tetraoxide 
D) lithium monohydrogen phosphite 
E) There is no known ionic compound with that formula. 
A) lithium monohydrogen phosphate 
B) lithium hydrogen phosphoric acid 
C) lithium hydrogen phosphorus tetraoxide 
D) lithium monohydrogen phosphite 
E) There is no known ionic compound with that formula.

Question 9

Ionic compounds are generally formed when metals react with nonmetals.

Accepted Answer

A) True 
 B)False

Question 10

The number of protons in the nucleus of an atom, determines the order of elements in the periodic table.

Accepted Answer

A) True 
 B)False

Question 11

From left to right, across a row on the periodic table, there is a gradual change in properties from nonmetallic to metallic properties.

Accepted Answer

A) True 
 B)False

Question 12

When barium metal reacts with chlorine gas, it forms an ionic compound, BaCl2. In the course of the reaction, each Cl atom

Accepted Answer

A) loses one proton. 
B) loses one electron. 
C) gains one proton. 
D) gains one electron. 
E) loses one neutron. 
A) loses one proton. 
B) loses one electron. 
C) gains one proton. 
D) gains one electron. 
E) loses one neutron.

Question 13

The formula formed from the calcium ion and ClO2- is ________.

Accepted Answer

Question 14

Predict the formula of the compound formed between chlorine and hydrogen.

Accepted Answer

The answer of Predict the formula of the compound formed...

Question 15

What is the correct formula for lead(IV)chloride?

Accepted Answer

The answer of What is the correct formula for lead(IV)chloride?...

Question 16

What is the name of the following compound: Mn2O7?

Accepted Answer

Question 17

How many hydrogen atoms appear on the right side of the equation following equation: 4NH3 + 3O2 $\rarr$2N2 + 6H2O?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 10 
E) 12 
A) 2 
B) 4 
C) 6 
D) 10 
E) 12

Question 18

The common name for the compound, CH4, is

Accepted Answer

A) carbon(IV)hydride. 
B) carbon tetrahydride. 
C) hydrocarbonate. 
D) methane. 
E) carbonic acid. 
A) carbon(IV)hydride. 
B) carbon tetrahydride. 
C) hydrocarbonate. 
D) methane. 
E) carbonic acid.

Question 19

Two elements, Qr and E, combine to form an ionic compound whose formula is QrE2. Qr also combines with element Z to form an ionic compound, Qr3Z2. Based on this information, what is a reasonable value for the charge on E? (Assume that Qr has the same charge in both compounds.)Hint: Consider the rules for forming ionic compounds to figure out what the possible charge is. Remember ionic compounds are neutral.

Accepted Answer

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

Question 20

The group 1 elements form compounds with oxygen that dissolve in water to give solutions that are strongly ________.

Accepted Answer

The answer of The group 1 elements form compounds with...

Exam 3: Elements, Compounds, and the Periodic Table

Which compound below has its formula written incorrectly?

Four molecules of the only product formed in the incomplete equation below are needed to ensure that the equation is balanced. P4O10 + 6H2O ?? ?

Which formula is incorrect because it does not represent a known ionic compound?

Elements that are part of the actinides are all composed of radioactive gases.

Which formula is incorrect because it does not represent a correctly written ionic compound?

Write the formula for the ionic compound formed from magnesium and sulfur.

Select the examples in which the names do not correctly match the formulas of the compounds indicated. Hint: Write the correct name of each formula without looking at the names and then compare it to the choices.

What is the name for LiHPO4?

Ionic compounds are generally formed when metals react with nonmetals.

The number of protons in the nucleus of an atom, determines the order of elements in the periodic table.

From left to right, across a row on the periodic table, there is a gradual change in properties from nonmetallic to metallic properties.

When barium metal reacts with chlorine gas, it forms an ionic compound, BaCl2. In the course of the reaction, each Cl atom

The formula formed from the calcium ion and ClO2- is ________.

Predict the formula of the compound formed between chlorine and hydrogen.

What is the correct formula for lead(IV)chloride?

What is the name of the following compound: Mn2O7?

How many hydrogen atoms appear on the right side of the equation following equation: 4NH3 + 3O2 →\rarr→ 2N2 + 6H2O?

The common name for the compound, CH4, is

The group 1 elements form compounds with oxygen that dissolve in water to give solutions that are strongly ________.

A Very Brief History of Chemistry

Scientific Measurements

The Mole and Stoichiometry

Molecular View of Reactions in Aqueous Solutions

Oxidation-Reduction Reactions

Energy and Chemical Change

The Quantum Mechanical Atom

The Basics of Chemical Bonding

Theories of Bonding and Structure

Properties of Gases

Intermolecular Attractions and the Properties of Liquids and Solids

Mixtures at the Molecular Level: Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases, a Molecular Look

Acid-Base Equilibria in Aqueous Solutions

Solubility and Simultaneous Equilibria

Thermodynamics

Electrochemistry

Nuclear Reactions and Their Role in Chemistry

Metal Complexes

Organic Compounds, Polymers, and Biochemicals

Filters

Four molecules of the only product formed in the incomplete equation below are needed to ensure that the equation is balanced. P₄O₁₀ + 6H₂O ?? ?

What is the name for LiHPO₄?

When barium metal reacts with chlorine gas, it forms an ionic compound, BaCl₂. In the course of the reaction, each Cl atom

The formula formed from the calcium ion and ClO₂^- is ________.

What is the name of the following compound: Mn₂O₇?

How many hydrogen atoms appear on the right side of the equation following equation: 4NH₃ + 3O₂ $\rarr$ 2N₂ + 6H₂O?

The common name for the compound, CH₄, is