Question 1

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

Accepted Answer

Anions are larger than their correspondi

Question 2

When forming an ion,sulfur,S,will normally ________ electron(s).

Accepted Answer

A) gain one 
B) gain two 
C) gain three 
D) lose one 
E) lose two 
A) gain one 
B) gain two 
C) gain three 
D) lose one 
E) lose two

Question 3

The atomic number of an atom of 80Br is ________.

Accepted Answer

A) 115 
B) 35 
C) 45 
D) 73 
E) 80 
A) 115 
B) 35 
C) 45 
D) 73 
E) 80

Question 4

When forming an ion,rubidium,Rb,will ________ electron(s).

Accepted Answer

A) gain one 
B) gain two 
C) gain three 
D) lose one 
E) lose two 
A) gain one 
B) gain two 
C) gain three 
D) lose one 
E) lose two

Question 5

Carbon has two naturally occurring isotopes,carbon-12 and carbon-13.The more common isotope of carbon is carbon-12 with an abundance of 98.93% while carbon-13 has an atomic mass of 13.00335 u.Calculate the atomic mass of carbon-12 if the atomic mass of carbon is 12.0107 u.

Accepted Answer

A) 13.1 u 
B) 13.0 u 
C) 12.0 u 
D) 12.8 u 
E) 12.4 u 
A) 13.1 u 
B) 13.0 u 
C) 12.0 u 
D) 12.8 u 
E) 12.4 u

Question 6

How many moles of fructose are in a sample containing 1.43 × 1024 molecules of fructose?

Accepted Answer

A) 1.16 × 10-48 mol 
B) 0.420 mol 
C) 8.61 × 1047 mol 
D) 2.37 mol 
E) 2.38 × 10-1 mol 
A) 1.16 × 10-48 mol 
B) 0.420 mol 
C) 8.61 × 1047 mol 
D) 2.37 mol 
E) 2.38 × 10-1 mol

Question 7

Calculate the mass (in g)of 1.9 × 1024 atoms of Pb.

Accepted Answer

A) 3.9 × 102 g 
B) 2.4 × 102 g 
C) 3.2 × 102 g 
D) 1.5 × 102 g 
E) 6.5 × 102 g 
A) 3.9 × 102 g 
B) 2.4 × 102 g 
C) 3.2 × 102 g 
D) 1.5 × 102 g 
E) 6.5 × 102 g

Question 8

An ion has 17 protons,20 neutrons,and 18 electrons.The symbol for the ion is ________.

Accepted Answer

A) 37Cl- 
B) 37Cl+ 
C) 38S+ 
D) 38S- 
E) 37S2+ 
A) 37Cl- 
B) 37Cl+ 
C) 38S+ 
D) 38S- 
E) 37S2+

Question 9

Silver has an atomic mass of 107.868 u.The Ag-109 isotope (108.905 u)has an abundance of 48.161%.What is the atomic mass,in u,of the other isotope?

Accepted Answer

A) 106.905 u 
B) 106.908 u 
C) 106.903 u 
D) 106.911 u 
A) 106.905 u 
B) 106.908 u 
C) 106.903 u 
D) 106.911 u

Question 10

If 6.0 g of carbon combines with 16.0 g of oxygen to form 22.0 g of carbon dioxide,how much carbon and oxygen,in grams,is in 28.7 g carbon dioxide?

Accepted Answer

A) 20.9 g carbon and 7.8 g oxygen 
B) 20.9 g carbon and 10.5 g oxygen 
C) 7.8 g carbon and 20.9 g oxygen 
D) 7.8 g carbon and 10.5 g oxygen 
E) 3.9 g carbon and 20.9 g oxygen 
A) 20.9 g carbon and 7.8 g oxygen 
B) 20.9 g carbon and 10.5 g oxygen 
C) 7.8 g carbon and 20.9 g oxygen 
D) 7.8 g carbon and 10.5 g oxygen 
E) 3.9 g carbon and 20.9 g oxygen

Question 11

When forming the nitride ion,nitrogen,N,will ________ electron(s).

Accepted Answer

A) gain one 
B) gain two 
C) gain three 
D) lose one 
E) lose two 
A) gain one 
B) gain two 
C) gain three 
D) lose one 
E) lose two

Question 12

Which of the following elements is a good conductor of heat and electricity?

Accepted Answer

A) carbon 
B) chlorine 
C) neon 
D) aluminum 
A) carbon 
B) chlorine 
C) neon 
D) aluminum

Question 13

Calculate the atomic mass of chromium if chromium has four naturally occurring isotopes with the following masses and natural abundances: 
Cr-50$\quad$ 49.9461 u $\quad$4.35%
Cr-52$\quad$ 51.9405 u $\quad$83.79%
Cr-53$\quad$ 52.9407 u $\quad$9.50%
Cr-54$\quad$ 53.9389 u $\quad$2.36%

Accepted Answer

A) 51.94 u 
B) 51.69 u 
C) 208.7 u 
D) 53.21 u 
E) 52.00 u 
A) 51.94 u 
B) 51.69 u 
C) 208.7 u 
D) 53.21 u 
E) 52.00 u

Question 14

The mass number is equal to

Accepted Answer

A) the sum of the number of the electrons and protons. 
B) the sum of the number of the neutrons and electrons. 
C) the sum of the number of protons,neutrons,and electrons. 
D) the sum of the number of protons and neutrons. 
A) the sum of the number of the electrons and protons. 
B) the sum of the number of the neutrons and electrons. 
C) the sum of the number of protons,neutrons,and electrons. 
D) the sum of the number of protons and neutrons.

Question 15

Give an example of a halogen.

Accepted Answer

The answer of Give an example of a halogen....

Question 16

If 102.7 g of tin is mixed with 10.9 g of copper to create the alloy pewter,how many metal atoms total are present in the pewter?

Accepted Answer

A) 5.81 × 1023 metal atoms 
B) 5.22 × 1023 metal atoms 
C) 3.75 × 1023 metal atoms 
D) 9.66 × 1023 metal atoms 
E) 6.24 × 1023 metal atoms 
A) 5.81 × 1023 metal atoms 
B) 5.22 × 1023 metal atoms 
C) 3.75 × 1023 metal atoms 
D) 9.66 × 1023 metal atoms 
E) 6.24 × 1023 metal atoms

Question 17

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 18

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 19

Argon belongs to the ________ group of the periodic table.

Accepted Answer

A) alkali metal 
B) alkaline earth metal 
C) halogen 
D) noble gas 
A) alkali metal 
B) alkaline earth metal 
C) halogen 
D) noble gas

Question 20

Calculate the atomic mass of tungsten given the atomic mass and percent abundance for the following isotopes: W-180 179.9467 u 0.12%
W-182$\quad$ 181.9482 u $\quad$26.50%
W-183$\quad$ 182.9502 u $\quad$14.31%
W-184$\quad$ 183.9509 u $\quad$30.64%
W-186$\quad$ 185.9544 u $\quad$28.43%

Accepted Answer

A) 183.75 u 
B) 183.84 u 
C) 182.98 u 
D) 184.41 u 
E) 183.92 u 
A) 183.75 u 
B) 183.84 u 
C) 182.98 u 
D) 184.41 u 
E) 183.92 u

Exam 2: Atoms and Elements

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

When forming an ion,sulfur,S,will normally ________ electron(s).

The atomic number of an atom of 80Br is ________.

When forming an ion,rubidium,Rb,will ________ electron(s).

Carbon has two naturally occurring isotopes,carbon-12 and carbon-13.The more common isotope of carbon is carbon-12 with an abundance of 98.93% while carbon-13 has an atomic mass of 13.00335 u.Calculate the atomic mass of carbon-12 if the atomic mass of carbon is 12.0107 u.

How many moles of fructose are in a sample containing 1.43 × 1024 molecules of fructose?

Calculate the mass (in g)of 1.9 × 1024 atoms of Pb.

An ion has 17 protons,20 neutrons,and 18 electrons.The symbol for the ion is ________.

Silver has an atomic mass of 107.868 u.The Ag-109 isotope (108.905 u)has an abundance of 48.161%.What is the atomic mass,in u,of the other isotope?

If 6.0 g of carbon combines with 16.0 g of oxygen to form 22.0 g of carbon dioxide,how much carbon and oxygen,in grams,is in 28.7 g carbon dioxide?

When forming the nitride ion,nitrogen,N,will ________ electron(s).

Which of the following elements is a good conductor of heat and electricity?

Calculate the atomic mass of chromium if chromium has four naturally occurring isotopes with the following masses and natural abundances: Cr-50 \quad 49.9461 u \quad 4.35% Cr-52 \quad 51.9405 u \quad 83.79% Cr-53 \quad 52.9407 u \quad 9.50% Cr-54 \quad 53.9389 u \quad 2.36%

The mass number is equal to

Give an example of a halogen.

If 102.7 g of tin is mixed with 10.9 g of copper to create the alloy pewter,how many metal atoms total are present in the pewter?

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

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

Argon belongs to the ________ group of the periodic table.

Calculate the atomic mass of tungsten given the atomic mass and percent abundance for the following isotopes: W-180 179.9467 u 0.12% W-182 \quad 181.9482 u \quad 26.50% W-183 \quad 182.9502 u \quad 14.31% W-184 \quad 183.9509 u \quad 30.64% W-186 \quad 185.9544 u \quad 28.43%

Units of Measurement for Physical and Chemical Change

Molecules,compounds,and Nomenclature

Chemical Reactions and Stoichiometry

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 Molecular Orbital Theory

Liquids, solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

The atomic number of an atom of ⁸⁰Br is ________.

How many moles of fructose are in a sample containing 1.43 × 10²⁴molecules of fructose?

Calculate the mass (in g)of 1.9 × 10²⁴ atoms of Pb.

Calculate the atomic mass of chromium if chromium has four naturally occurring isotopes with the following masses and natural abundances: Cr-50 $\quad$ 49.9461 u $\quad$ 4.35% Cr-52 $\quad$ 51.9405 u $\quad$ 83.79% Cr-53 $\quad$ 52.9407 u $\quad$ 9.50% Cr-54 $\quad$ 53.9389 u $\quad$ 2.36%

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

Calculate the atomic mass of tungsten given the atomic mass and percent abundance for the following isotopes: W-180 179.9467 u 0.12% W-182 $\quad$ 181.9482 u $\quad$ 26.50% W-183 $\quad$ 182.9502 u $\quad$ 14.31% W-184 $\quad$ 183.9509 u $\quad$ 30.64% W-186 $\quad$ 185.9544 u $\quad$ 28.43%