Question 1

Steel is galvanized by giving it a surface coating of zinc.Galvanized steel is an example of

Accepted Answer

A) a compound. 
B) an element. 
C) a mixture. 
D) an ion. 
A) a compound. 
B) an element. 
C) a mixture. 
D) an ion.

Question 2

Which one of the following compounds contains ionic bonds?

Accepted Answer

A) MgO 
B) HCl 
C) PCl3 
D) CO2 
A) MgO 
B) HCl 
C) PCl3 
D) CO2

Question 3

Which of the following elements is classified as a semimetal?

Accepted Answer

A) calcium 
B) silicon 
C) fluorine 
D) uranium 
A) calcium 
B) silicon 
C) fluorine 
D) uranium

Question 4

The chemical formula for potassium peroxide is

Accepted Answer

A) KOH. 
B) KO2. 
C) K2O. 
D) K2O2. 
A) KOH. 
B) KO2. 
C) K2O. 
D) K2O2.

Question 5

-What is the chemical symbol for arsenic?

Accepted Answer

A) Ac 
B) Ar 
C) As 
D) At 
A) Ac 
B) Ar 
C) As 
D) At

Question 6

The symbol for mercury is ________.

Accepted Answer

The answer of The symbol for mercury is ________....

Question 7

A neutral atom with atomic number 5 and mass number 11 contains ________ electrons.

Accepted Answer

The answer of A neutral atom with atomic number 5...

Question 8

The ion,NO2-,is named

Accepted Answer

A) nitrate ion. 
B) nitrite ion. 
C) nitrogen dioxide ion. 
D) nitrogen(II)oxide ion. 
A) nitrate ion. 
B) nitrite ion. 
C) nitrogen dioxide ion. 
D) nitrogen(II)oxide ion.

Question 9

81 g of HBr react with 40 g of NaOH to produce 18 g of H2O,then the number of grams of NaBr produced is ________.
HBr + NaOH → H2O + NaBr

Accepted Answer

Question 10

Sodium metal and water react to form hydrogen and sodium hydroxide.If 11.96 g of sodium react with water to form 0.52 g of hydrogen and 20.80 g of sodium hydroxide,what mass of water was involved in the reaction?

Accepted Answer

A) 9.36 g 
B) 11.96 g 
C) 20.28 g 
D) 21.32 g 
A) 9.36 g 
B) 11.96 g 
C) 20.28 g 
D) 21.32 g

Question 11

What is the chemical formula for nickel(II)phosphate?

Accepted Answer

A) Ni2P 
B) Ni2PO4 
C) Ni3P2 
D) Ni3(PO4)2 
A) Ni2P 
B) Ni2PO4 
C) Ni3P2 
D) Ni3(PO4)2

Question 12

The element Al can be found in period ________ and group ________ of the periodic table.

Accepted Answer

The answer of The element Al can be found in...

Question 13

Pb is the symbol for the element ________.

Accepted Answer

The answer of Pb is the symbol for the element...

Question 14

Which element indicated by letter in the following periodic table is the best conductor of electricity and heat?

Accepted Answer

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

Question 15

Which of the following elements is not a solid at room temperature?

Accepted Answer

A) Zn 
B) Hg 
C) N 
D) C 
A) Zn 
B) Hg 
C) N 
D) C

Question 16

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 17

In the following drawings,shaded spheres represent cations and unshaded spheres represent anions.  
-Which drawing represents the ionic compound AgClO3?

Accepted Answer

A) drawing (a) 
B) drawing (b) 
C) drawing (c) 
D) drawing (d) 
A) drawing (a) 
B) drawing (b) 
C) drawing (c) 
D) drawing (d)

Question 18

Which are isotopes? An atom that has an atomic number of 35 and a mass number of 76 is an isotope of an atom that has

Accepted Answer

A) an atomic number of 31 and a mass number of 76. 
B) an atomic number of 35 and a mass number of 80. 
C) 41 neutrons and 35 protons. 
D) 41 protons and 35 neutrons. 
A) an atomic number of 31 and a mass number of 76. 
B) an atomic number of 35 and a mass number of 80. 
C) 41 neutrons and 35 protons. 
D) 41 protons and 35 neutrons.

Question 19

Which of the following elements is not a solid at room temperature?

Accepted Answer

A) Ag 
B) Al 
C) He 
D) Fe 
A) Ag 
B) Al 
C) He 
D) Fe

Question 20

Which of the following elements has the least tendency to form an ion?

Accepted Answer

A) Be 
B) H 
C) He 
D) O 
A) Be 
B) H 
C) He 
D) O

Exam 2: Atoms, molecules, and Ions

Steel is galvanized by giving it a surface coating of zinc.Galvanized steel is an example of

Which one of the following compounds contains ionic bonds?

Which of the following elements is classified as a semimetal?

The chemical formula for potassium peroxide is

-What is the chemical symbol for arsenic?

The symbol for mercury is ________.

A neutral atom with atomic number 5 and mass number 11 contains ________ electrons.

The ion,NO2-,is named

81 g of HBr react with 40 g of NaOH to produce 18 g of H2O,then the number of grams of NaBr produced is ________. HBr + NaOH → H2O + NaBr

Sodium metal and water react to form hydrogen and sodium hydroxide.If 11.96 g of sodium react with water to form 0.52 g of hydrogen and 20.80 g of sodium hydroxide,what mass of water was involved in the reaction?

What is the chemical formula for nickel(II)phosphate?

The element Al can be found in period ________ and group ________ of the periodic table.

Pb is the symbol for the element ________.

Which element indicated by letter in the following periodic table is the best conductor of electricity and heat?

Which of the following elements is not a solid at room temperature?

Identify the chemical symbol of element Q in Q.

In the following drawings,shaded spheres represent cations and unshaded spheres represent anions. -Which drawing represents the ionic compound AgClO3?

Which are isotopes? An atom that has an atomic number of 35 and a mass number of 76 is an isotope of an atom that has

Which of the following elements is not a solid at room temperature?

Which of the following elements has the least tendency to form an ion?

Chemical Tools: Experimentation and Measurement

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Periodicity and the Electronic Structure of Atoms

Ionic Compounds: Periodic Trends and Bonding

Covalent Bonding and Electron-Dot Structures

Covalent Compounds: Bonding Theories and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids, solids, and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

The Main-Group Elements

Connections to Organic and Biological Chemistry

Filters

The ion,NO₂^-,is named

81 g of HBr react with 40 g of NaOH to produce 18 g of H₂O,then the number of grams of NaBr produced is ________. HBr + NaOH → H₂O + NaBr

The element Al can be found in period and group of the periodic table.

In the following drawings,shaded spheres represent cations and unshaded spheres represent anions. -Which drawing represents the ionic compound AgClO₃?