Question 1

One of the orbitals in a shell of an atom could be pictured as shown below.

Accepted Answer

A) True 
 B)False  True

Question 2

Which of the following sequences gives the correct order as we move from left to right across a row of the period table?

Accepted Answer

A) metal, metalloid, nonmetal 
B) metal, nonmetal, metalloid 
C) nonmetal, metal, metalloid 
D) nonmetal, metalloid, metal 
A) metal, metalloid, nonmetal 
B) metal, nonmetal, metalloid 
C) nonmetal, metal, metalloid 
D) nonmetal, metalloid, metal A

Question 3

Write the chemical symbol for the elements that is in period 2 and group 8A of the periodic table.

Accepted Answer

Ne

Question 4

Which subatomic particle(s) are found in the nucleus?

Accepted Answer

A) only electrons 
B) only neutrons 
C) only protons 
D) both protons and neutrons 
A) only electrons 
B) only neutrons 
C) only protons 
D) both protons and neutrons

Question 5

Convert the following mass moles.
22.98 g glycine, an amino acid, C2H5NO2.

Accepted Answer

Question 6

Fill in each blank with the appropriate term from the list given below.
protons
neutrons
electrons
valence electrons
-N, P and As have the same number of_____________________.

Accepted Answer

The answer of Fill in each blank with the appropriate...

Question 7

How many valence electrons are there in an oxygen atom?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
A) 2 
B) 4 
C) 6 
D) 8

Question 8

Neutral isotopes of the same element have the same number of electrons.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is the correct unit for the formula weight of a large number of atoms?

Accepted Answer

A) amu 
B) g 
C) mol 
D) molecules 
A) amu 
B) g 
C) mol 
D) molecules

Question 10

Which of the following groups of elements contains only metals?

Accepted Answer

A) Ag, As, Ba, Ca 
B) Ag, Au, Pb, Rb 
C) As, Ge, Si, Te 
D) B, Al, Ga, In 
A) Ag, As, Ba, Ca 
B) Ag, Au, Pb, Rb 
C) As, Ge, Si, Te 
D) B, Al, Ga, In

Question 11

A person drinks 1900 g of water, H2O, per day. How many moles of water did they consume?

Accepted Answer

A)    mol 
B) 0.009 mol 
C) 105 mol 
D) 18.02 mol 
A)    mol 
B) 0.009 mol 
C) 105 mol 
D) 18.02 mol

Question 12

Which of the following is the conversion factor that could be used to convert a mass in grams of sodium to the corresponding number of moles?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 13

Enter an integer number (1, 2, 3, ...) in the blank.
How many electrons are in shell 2 of a P atom?
____________________electrons

Accepted Answer

The answer of Enter an integer number (1, 2, 3,...

Question 14

The pie chart shown below represents the elemental composition of the human body including water.

Accepted Answer

A) True 
 B)False

Question 15

Group 4A and Group 14 are two different designations for the same column of the periodic table.

Accepted Answer

A) True 
 B)False

Question 16

A sealed cylinder is filled with a large collection of atoms that have 14 neutrons and 13 protons. Which of the following would behave in a manner similar to this collection of atoms?

Accepted Answer

A) a group of atoms with 13 neutrons and 14 protons 
B) a group of atoms with 14 neutrons and 15 protons 
C) a group of atoms with 15 neutrons and 14 protons 
D) a group of atoms with 15 neutrons and 13 protons 
A) a group of atoms with 13 neutrons and 14 protons 
B) a group of atoms with 14 neutrons and 15 protons 
C) a group of atoms with 15 neutrons and 14 protons 
D) a group of atoms with 15 neutrons and 13 protons

Question 17

Use the following terms as appropriate to complete the given statement. All terms may not be used.
mass
volume
density
intensive
extensive
The ______________________ of a substance is an example of a ____________________ property.

Accepted Answer

mass,exten

Question 18

Complete the following statement using one of the following terms.
compound
element
mixture
In the manufacture of steel, the percent of manganese is adjusted to determine the brittleness of the product. Steel is an example of a ______________________.

Accepted Answer

The answer of Complete the following statement using one of...

Question 19

Indicate the number of dots that should be placed around the Lewis symbol for the following element. Use an integer:
 1, 2, 3, etc. as appropriate.
Br

Accepted Answer

The answer of Indicate the number of dots that should...

Question 20

If you need a sample of 2.841 mol of Na2S, how many grams do you need?

Accepted Answer

A) 0.003640 g 
B) 2.841 g 
C) 78.05 g 
D) 221.7 g 
A) 0.003640 g 
B) 2.841 g 
C) 78.05 g 
D) 221.7 g

One of the orbitals in a shell of an atom could be pictured as shown below.

Which of the following sequences gives the correct order as we move from left to right across a row of the period table?

Write the chemical symbol for the elements that is in period 2 and group 8A of the periodic table.

Which subatomic particle(s) are found in the nucleus?

Convert the following mass moles. 22.98 g glycine, an amino acid, C₂H₅NO₂.

Fill in each blank with the appropriate term from the list given below. protons neutrons electrons valence electrons -N, P and As have the same number of_____________________.

How many valence electrons are there in an oxygen atom?

Neutral isotopes of the same element have the same number of electrons.

Which of the following is the correct unit for the formula weight of a large number of atoms?

Which of the following groups of elements contains only metals?

A person drinks 1900 g of water, H₂O, per day. How many moles of water did they consume?

Which of the following is the conversion factor that could be used to convert a mass in grams of sodium to the corresponding number of moles?

Enter an integer number (1, 2, 3, ...) in the blank. How many electrons are in shell 2 of a P atom? ____________________electrons

The pie chart shown below represents the elemental composition of the human body including water.

Group 4A and Group 14 are two different designations for the same column of the periodic table.

A sealed cylinder is filled with a large collection of atoms that have 14 neutrons and 13 protons. Which of the following would behave in a manner similar to this collection of atoms?

Use the following terms as appropriate to complete the given statement. All terms may not be used. mass volume density intensive extensive The __ of a substance is an example of a property.

Complete the following statement using one of the following terms. compound element mixture In the manufacture of steel, the percent of manganese is adjusted to determine the brittleness of the product. Steel is an example of a ______________________.

Indicate the number of dots that should be placed around the Lewis symbol for the following element. Use an integer: 1, 2, 3, etc. as appropriate. Br

If you need a sample of 2.841 mol of Na₂S, how many grams do you need?

Measurements in Science and Medicine

Chemical Bonds

Energy and Physical Properties

Solution Concentration

Chemical Reactions

Acids and Bases

Nuclear Chemistry

Hydrocarbons: An Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

Exam 2: Atoms, Elements, and Compounds

One of the orbitals in a shell of an atom could be pictured as shown below.

Which of the following sequences gives the correct order as we move from left to right across a row of the period table?

Write the chemical symbol for the elements that is in period 2 and group 8A of the periodic table.

Which subatomic particle(s) are found in the nucleus?

Convert the following mass moles. 22.98 g glycine, an amino acid, C2H5NO2.

Fill in each blank with the appropriate term from the list given below. protons neutrons electrons valence electrons -N, P and As have the same number of_____________________.

How many valence electrons are there in an oxygen atom?

Neutral isotopes of the same element have the same number of electrons.

Which of the following is the correct unit for the formula weight of a large number of atoms?

Which of the following groups of elements contains only metals?

A person drinks 1900 g of water, H2O, per day. How many moles of water did they consume?

Which of the following is the conversion factor that could be used to convert a mass in grams of sodium to the corresponding number of moles?

Enter an integer number (1, 2, 3, ...) in the blank. How many electrons are in shell 2 of a P atom? ____________________electrons

The pie chart shown below represents the elemental composition of the human body including water.

Group 4A and Group 14 are two different designations for the same column of the periodic table.

A sealed cylinder is filled with a large collection of atoms that have 14 neutrons and 13 protons. Which of the following would behave in a manner similar to this collection of atoms?

Use the following terms as appropriate to complete the given statement. All terms may not be used. mass volume density intensive extensive The ______________________ of a substance is an example of a ____________________ property.

Complete the following statement using one of the following terms. compound element mixture In the manufacture of steel, the percent of manganese is adjusted to determine the brittleness of the product. Steel is an example of a ______________________.

Indicate the number of dots that should be placed around the Lewis symbol for the following element. Use an integer: 1, 2, 3, etc. as appropriate. Br

If you need a sample of 2.841 mol of Na2S, how many grams do you need?

Measurements in Science and Medicine

Chemical Bonds

Energy and Physical Properties

Solution Concentration

Chemical Reactions

Acids and Bases

Nuclear Chemistry

Hydrocarbons: An Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

Convert the following mass moles. 22.98 g glycine, an amino acid, C₂H₅NO₂.

A person drinks 1900 g of water, H₂O, per day. How many moles of water did they consume?

Use the following terms as appropriate to complete the given statement. All terms may not be used. mass volume density intensive extensive The __ of a substance is an example of a property.

If you need a sample of 2.841 mol of Na₂S, how many grams do you need?