Question 1

How many silver atoms are contained in 3.75 moles of silver?

Accepted Answer

A) 6.23 × 1024 silver atoms 
B) 2.26 × 1024 silver atoms 
C) 1.61 × 1023 silver atoms 
D) 2.44 × 1026 silver atoms 
E) 6.50 × 1025 silver atoms 
A) 6.23 × 1024 silver atoms 
B) 2.26 × 1024 silver atoms 
C) 1.61 × 1023 silver atoms 
D) 2.44 × 1026 silver atoms 
E) 6.50 × 1025 silver atoms

Question 2

Which element has the chemical symbol,Ru?

Accepted Answer

A) rubidium 
B) ruthenium 
C) rutherfordium 
D) rhodium 
A) rubidium 
B) ruthenium 
C) rutherfordium 
D) rhodium

Question 3

Predict the charge that the ion formed from bromine would have.

Accepted Answer

A) 1- 
B) 2+ 
C) 1+ 
D) 4+ 
E) 2- 
A) 1- 
B) 2+ 
C) 1+ 
D) 4+ 
E) 2-

Question 4

Are anions typically larger or smaller than their corresponding atom? Why?

Accepted Answer

Anions are larger than their correspondi

Question 5

Which of the following does not describe a nonmetal?

Accepted Answer

A) Tend to gain electrons 
B) Found in the upper right hand corner of the periodic table. 
C) Poor conductor of electricity 
D) Nonmetals are generally unreactive. 
E) Poor conductor of heat 
A) Tend to gain electrons 
B) Found in the upper right hand corner of the periodic table. 
C) Poor conductor of electricity 
D) Nonmetals are generally unreactive. 
E) Poor conductor of heat

Question 6

Identify the element that has an atomic number of 40.

Accepted Answer

A) neon 
B) calcium 
C) zirconium 
D) bromine 
A) neon 
B) calcium 
C) zirconium 
D) bromine

Question 7

Calculate the mass,in kg,of 4.87 × 1025 atoms of Zn.

Accepted Answer

A) 5.29 kg 
B) 1.89 kg 
C) 8.09 kg 
D) 1.24 kg 
E) 1.09 kg 
A) 5.29 kg 
B) 1.89 kg 
C) 8.09 kg 
D) 1.24 kg 
E) 1.09 kg

Question 8

How many moles of potassium are contained in 449 g of potassium?

Accepted Answer

A) 11.5 moles 
B) 17.6 moles 
C) 69.2 moles 
D) 23.9 moles 
E) 41.5 moles 
A) 11.5 moles 
B) 17.6 moles 
C) 69.2 moles 
D) 23.9 moles 
E) 41.5 moles

Question 9

Which of the following is an example of the law of multiple proportions?

Accepted Answer

A) A sample of chlorine is found to contain three times as much Cl-35 as Cl-37. 
B) Two different compounds formed from carbon and oxygen have the following mass ratios:
1.33 g O: 1 g C and 2.66 g O: 1 g C. 
C) Two different samples of table salt are found to have the same ratio of sodium to chlorine. 
D) The atomic mass of bromine is found to be 79.90 amu. 
E) Nitrogen dioxide always has a mass ratio of 2.28 g O: 1 g N. 
A) A sample of chlorine is found to contain three times as much Cl-35 as Cl-37. 
B) Two different compounds formed from carbon and oxygen have the following mass ratios:
1.33 g O: 1 g C and 2.66 g O: 1 g C. 
C) Two different samples of table salt are found to have the same ratio of sodium to chlorine. 
D) The atomic mass of bromine is found to be 79.90 amu. 
E) Nitrogen dioxide always has a mass ratio of 2.28 g O: 1 g N.

Question 10

Identify the chemical symbol of element Q in
  Q.

Accepted Answer

A) Br 
B) Hg 
C) Pd 
D) Se 
A) Br 
B) Hg 
C) Pd 
D) Se

Question 11

Which of the following elements is a nonmetal?

Accepted Answer

A) Zn 
B) Cs 
C) Ca 
D) Co 
E) P 
A) Zn 
B) Cs 
C) Ca 
D) Co 
E) P

Question 12

What does "X" represent in the following symbol? 
  X

Accepted Answer

A) silicon 
B) sulfur 
C) zinc 
D) ruthenium 
E) nickel 
A) silicon 
B) sulfur 
C) zinc 
D) ruthenium 
E) nickel

Question 13

How many electrons are in the ion,P3-?

Accepted Answer

A) 12 
B) 18 
C) 28 
D) 34 
A) 12 
B) 18 
C) 28 
D) 34

Question 14

Gallium has an atomic mass of 69.723 amu.The Ga-69 isotope (68.926 amu)is 60.11%.What is the amu of the other isotope?

Accepted Answer

A) 70.924 amu 
B) 70.928 amu 
C) 70.932 amu 
D) 70.920 amu 
A) 70.924 amu 
B) 70.928 amu 
C) 70.932 amu 
D) 70.920 amu

Question 15

An atom of 14C contains ________ protons.

Accepted Answer

A) 6 
B) 20 
C) 8 
D) 10 
E) 14 
A) 6 
B) 20 
C) 8 
D) 10 
E) 14

Question 16

Give the number of neutrons for carbon-14,with a -2 charge.

Accepted Answer

A) 7 
B) 4 
C) 6 
D) 8 
A) 7 
B) 4 
C) 6 
D) 8

Question 17

Predict the charge that an ion formed from sulfur would have.

Accepted Answer

A) 1- 
B) 6+ 
C) 3- 
D) 4+ 
E) 2- 
A) 1- 
B) 6+ 
C) 3- 
D) 4+ 
E) 2-

Question 18

The atomic mass for cadmium is ________.

Accepted Answer

A) 48 
B) 112.41 
C) 40.08 
D) 20 
A) 48 
B) 112.41 
C) 40.08 
D) 20

Question 19

Which of the following elements has chemical properties similar to tellurium?

Accepted Answer

A) fluorine 
B) hydrogen 
C) nitrogen 
D) sulfur 
A) fluorine 
B) hydrogen 
C) nitrogen 
D) sulfur

Question 20

Give the number of neutrons in Al3+.

Accepted Answer

A) 10 
B) 16 
C) 17 
D) 13 
E) 14 
A) 10 
B) 16 
C) 17 
D) 13 
E) 14

How many silver atoms are contained in 3.75 moles of silver?

Which element has the chemical symbol,Ru?

Predict the charge that the ion formed from bromine would have.

Are anions typically larger or smaller than their corresponding atom? Why?

Which of the following does not describe a nonmetal?

Identify the element that has an atomic number of 40.

Calculate the mass,in kg,of 4.87 × 10²⁵ atoms of Zn.

How many moles of potassium are contained in 449 g of potassium?

Which of the following is an example of the law of multiple proportions?

Identify the chemical symbol of element Q in Q.

Which of the following elements is a nonmetal?

What does "X" represent in the following symbol? X

How many electrons are in the ion,P^3-?

Gallium has an atomic mass of 69.723 amu.The Ga-69 isotope (68.926 amu)is 60.11%.What is the amu of the other isotope?

An atom of ¹⁴C contains ________ protons.

Give the number of neutrons for carbon-14,with a -2 charge.

Predict the charge that an ion formed from sulfur would have.

The atomic mass for cadmium is ________.

Which of the following elements has chemical properties similar to tellurium?

Give the number of neutrons in Al³⁺.

Matter, Measurement, and Problem Solving

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Exam 2: Atoms and Elements

How many silver atoms are contained in 3.75 moles of silver?

Which element has the chemical symbol,Ru?

Predict the charge that the ion formed from bromine would have.

Are anions typically larger or smaller than their corresponding atom? Why?

Which of the following does not describe a nonmetal?

Identify the element that has an atomic number of 40.

Calculate the mass,in kg,of 4.87 × 1025 atoms of Zn.

How many moles of potassium are contained in 449 g of potassium?

Which of the following is an example of the law of multiple proportions?

Identify the chemical symbol of element Q in Q.

Which of the following elements is a nonmetal?

What does "X" represent in the following symbol? X

How many electrons are in the ion,P3-?

Gallium has an atomic mass of 69.723 amu.The Ga-69 isotope (68.926 amu)is 60.11%.What is the amu of the other isotope?

An atom of 14C contains ________ protons.

Give the number of neutrons for carbon-14,with a -2 charge.

Predict the charge that an ion formed from sulfur would have.

The atomic mass for cadmium is ________.

Which of the following elements has chemical properties similar to tellurium?

Give the number of neutrons in Al3+.

Matter, Measurement, and Problem Solving

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Calculate the mass,in kg,of 4.87 × 10²⁵ atoms of Zn.

How many electrons are in the ion,P^3-?

An atom of ¹⁴C contains ________ protons.

Give the number of neutrons in Al³⁺.