Question 1

Atoms of the same element with different mass numbers are called

Accepted Answer

A) ions. 
B) neutrons. 
C) allotropes. 
D) chemical families. 
E) isotopes. 
A) ions. 
B) neutrons. 
C) allotropes. 
D) chemical families. 
E) isotopes.

Question 2

An anion is defined as

Accepted Answer

A) a charged atom or group of atoms with a net negative charge. 
B) a stable atom. 
C) a group of stable atoms. 
D) an atom or group of atoms with a net positive charge. 
A) a charged atom or group of atoms with a net negative charge. 
B) a stable atom. 
C) a group of stable atoms. 
D) an atom or group of atoms with a net positive charge.

Question 3

Give the formula for magnesium chloride.

Accepted Answer

The answer of Give the formula for magnesium chloride....

Question 4

Give the formula for cobalt(II)chlorate dihydrate

Accepted Answer

A) CoCl2·2H2O 
B) CoClO3(H2O)2 
C) Co(ClO3)2(H2O)2 
D) Co(ClO3)2·2H2O 
E) Co2(ClO3)3·2H2O 
A) CoCl2·2H2O 
B) CoClO3(H2O)2 
C) Co(ClO3)2(H2O)2 
D) Co(ClO3)2·2H2O 
E) Co2(ClO3)3·2H2O

Question 5

The scientist who determined the magnitude of the electric charge of the electron was

Accepted Answer

A) John Dalton. 
B) Robert Millikan. 
C) J.J.Thomson. 
D) Henry Moseley. 
E) R.Chang. 
A) John Dalton. 
B) Robert Millikan. 
C) J.J.Thomson. 
D) Henry Moseley. 
E) R.Chang.

Question 6

Marie Curie suggested the name "radioactivity" to describe the spontaneous emission of particles and/or radiation.

Accepted Answer

A) True 
 B)False

Question 7

How many carbon atoms are in one molecule of CH3(CH2)3CH3?

Accepted Answer

Question 8

The formula for calcium phosphate is

Accepted Answer

A) CaPO4. 
B) Ca3(PO4)2. 
C) Ca2(PO4)3. 
D) Ca3P2. 
E) Ca3(PO3)2. 
A) CaPO4. 
B) Ca3(PO4)2. 
C) Ca2(PO4)3. 
D) Ca3P2. 
E) Ca3(PO3)2.

Question 9

Name the compound CH3CH2NH2

Accepted Answer

Question 10

A phosphide ion has:

Accepted Answer

A) 10 protons and 13 electrons 
B) 12 protons and 15 electrons 
C) 15 protons and 15 electrons 
D) 15 protons and 18 electrons 
E) 18 protons and 21 electrons 
A) 10 protons and 13 electrons 
B) 12 protons and 15 electrons 
C) 15 protons and 15 electrons 
D) 15 protons and 18 electrons 
E) 18 protons and 21 electrons

Question 11

What is the formula for xenon difluoride?

Accepted Answer

The answer of What is the formula for xenon difluoride?...

Question 12

What type of compound is H2SO3?

Accepted Answer

A) Ionic 
B) Binary 
C) Acid 
D) Base 
E) Hydrate 
A) Ionic 
B) Binary 
C) Acid 
D) Base 
E) Hydrate

Question 13

Name the compound NO2

Accepted Answer

A) mononitrogen dioxygen 
B) nitrogen dioxide 
C) dinitrogen monoxide 
D) nitrogen oxide 
E) nitrite 
A) mononitrogen dioxygen 
B) nitrogen dioxide 
C) dinitrogen monoxide 
D) nitrogen oxide 
E) nitrite

Question 14

The straight chain hydrocarbon that contains six carbon atoms is

Accepted Answer

A) propane 
B) butane 
C) pentane 
D) hexane 
E) heptane 
A) propane 
B) butane 
C) pentane 
D) hexane 
E) heptane

Question 15

What type of compound is NH4NO3

Accepted Answer

A) Ionic 
B) Molecular 
C) Acid 
D) Base 
E) Hydrate 
A) Ionic 
B) Molecular 
C) Acid 
D) Base 
E) Hydrate

Question 16

Give an example of an anion that contains a metal and write the name.

Accepted Answer

chromate o

Exam 2: Atoms, Molecules, and Ions

Atoms of the same element with different mass numbers are called

An anion is defined as

Give the formula for magnesium chloride.

Give the formula for cobalt(II)chlorate dihydrate

The scientist who determined the magnitude of the electric charge of the electron was

Marie Curie suggested the name "radioactivity" to describe the spontaneous emission of particles and/or radiation.

How many carbon atoms are in one molecule of CH3(CH2)3CH3?

The formula for calcium phosphate is

Name the compound CH3CH2NH2

A phosphide ion has:

What is the formula for xenon difluoride?

What type of compound is H2SO3?

Name the compound NO2

The straight chain hydrocarbon that contains six carbon atoms is

What type of compound is NH4NO3

Give an example of an anion that contains a metal and write the name.

Chemistry: the Study of Change

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

How many carbon atoms are in one molecule of CH₃(CH₂)₃CH₃?

Name the compound CH₃CH₂NH₂

What type of compound is H₂SO₃?

Name the compound NO₂

What type of compound is NH₄NO₃