Question 1

All of the following are characteristics of metals except:

Accepted Answer

A) good conductors of heat 
B) malleable 
C) ductile 
D) often lustrous 
E) tend to gain electrons in chemical reactions 
A) good conductors of heat 
B) malleable 
C) ductile 
D) often lustrous 
E) tend to gain electrons in chemical reactions E

Question 2

You are given a compound with the formula MCl2,in which M is a metal.You are told that the metal ion has 26 electrons.What is the identity of the metal?

Accepted Answer

A) Fe 
B) Al 
C) Zn 
D) Co 
E) Ni 
A) Fe 
B) Al 
C) Zn 
D) Co 
E) Ni E

Question 3

Write the formula for:
-aluminum hydroxide

Accepted Answer

Al(OH)<sub>3</sub>

Question 4

Avogadro's hypothesis states that:

Accepted Answer

A) Each atom of oxygen is 16 times more massive than an atom of hydrogen. 
B) A given compound always contains exactly the same proportion of elements by mass. 
C) When two elements form a series of compounds,the ratios of masses that combine with 1 gram of the first element can always be reduced to small whole numbers. 
D) At the same temperature and pressure,equal volumes of different gases contain an equal number of particles. 
E) Mass is neither created nor destroyed in a chemical reaction. 
A) Each atom of oxygen is 16 times more massive than an atom of hydrogen. 
B) A given compound always contains exactly the same proportion of elements by mass. 
C) When two elements form a series of compounds,the ratios of masses that combine with 1 gram of the first element can always be reduced to small whole numbers. 
D) At the same temperature and pressure,equal volumes of different gases contain an equal number of particles. 
E) Mass is neither created nor destroyed in a chemical reaction.

Question 5

Write the formula for:
-acetic acid

Accepted Answer

The answer of Write the formula for:
-acetic acid...

Question 6

The numbers of protons,neutrons,and electrons in   K+ are:

Accepted Answer

A) 20 p,19 n,19 e 
B) 20 p,19 n,20 e 
C) 19 p,20 n,20 e 
D) 19 p,20 n,19 e 
E) 19 p,20 n,18 e 
A) 20 p,19 n,19 e 
B) 20 p,19 n,20 e 
C) 19 p,20 n,20 e 
D) 19 p,20 n,19 e 
E) 19 p,20 n,18 e

Question 7

A species with 12 protons and 10 electrons is

Accepted Answer

A) Ne2+ 
B) Ti2+ 
C) Mg2+ 
D) Mg 
E) Ne2- 
A) Ne2+ 
B) Ti2+ 
C) Mg2+ 
D) Mg 
E) Ne2-

Question 8

Which of the following atomic symbols is incorrect?

Accepted Answer

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

Question 9

By knowing the number of protons a neutral atom has,you should be able to determine

Accepted Answer

A) the number of neutrons in the neutral atom 
B) the number of electrons in the neutral atom 
C) the name of the atom 
D) two of the above 
E) none of the above 
A) the number of neutrons in the neutral atom 
B) the number of electrons in the neutral atom 
C) the name of the atom 
D) two of the above 
E) none of the above

Question 10

An isotope,X,of a particular element has an atomic number of 15 and a mass number of 31.Therefore:

Accepted Answer

A) X is an isotope of phosphorus. 
B) X has 16 neutrons per atom. 
C) X has an atomic mass of 30.973. 
D) A and B. 
E) A,B,and C. 
A) X is an isotope of phosphorus. 
B) X has 16 neutrons per atom. 
C) X has an atomic mass of 30.973. 
D) A and B. 
E) A,B,and C.

Question 11

Write the formula for:
-sodium thiosulfate

Accepted Answer

The answer of Write the formula for:
-sodium thiosulfate...

Question 12

Write the names of the following compounds:
a)
FeSO4
________________
b)
NaC2H3O2
________________
c)
KNO2
________________
d)
Ca(OH)2
________________
e)
NiCO3
________________

Accepted Answer

a)iron(II)sulfate
b)

Question 13

Name the following compounds:
-CCl4

Accepted Answer

carbon tet

Question 14

Which of the following names is incorrect?

Accepted Answer

A) cobalt(II)chloride 
B) magnesium oxide 
C) aluminum(III)oxide 
D) diphosphorus pentoxide 
E) All of the above names are correct. 
A) cobalt(II)chloride 
B) magnesium oxide 
C) aluminum(III)oxide 
D) diphosphorus pentoxide 
E) All of the above names are correct.

Question 15

Write the chemical formulas for the following compounds or ions.
a)
nitrate ion
_________
b)
aluminum oxide
_________
c)
ammonium ion
_________
d)
perchloric acid
_________
e)
copper(II)bromide
_________

Accepted Answer

a)NO₃^- b)Al₂O

Question 16

All of the following are true except:

Accepted Answer

A) Ions are formed by adding electrons to a neutral atom. 
B) Ions are formed by changing the number of protons in an atom's nucleus. 
C) Ions are formed by removing electrons from a neutral atom. 
D) An ion has a positive or negative charge. 
E) Metals tend to form positive ions. 
A) Ions are formed by adding electrons to a neutral atom. 
B) Ions are formed by changing the number of protons in an atom's nucleus. 
C) Ions are formed by removing electrons from a neutral atom. 
D) An ion has a positive or negative charge. 
E) Metals tend to form positive ions.

Question 17

Which of the following statements from Dalton's atomic theory is no longer true,according to modern atomic theory?

Accepted Answer

A) Elements are made up of tiny particles called atoms. 
B) Atoms are not created or destroyed in chemical reactions. 
C) All atoms of a given element are identical. 
D) Atoms are indivisible in chemical reactions. 
E) All of these statements are true according to modern atomic theory. 
A) Elements are made up of tiny particles called atoms. 
B) Atoms are not created or destroyed in chemical reactions. 
C) All atoms of a given element are identical. 
D) Atoms are indivisible in chemical reactions. 
E) All of these statements are true according to modern atomic theory.

Question 18

Which of the following has 61 neutrons,47 protons,and 46 electrons?

Accepted Answer

A)    Pm 
B)    Ag+ 
C)    Pd- 
D)    Cd+ 
E)    Ag 
A)    Pm 
B)    Ag+ 
C)    Pd- 
D)    Cd+ 
E)    Ag

Question 19

Which of the following pairs of compounds can be used to illustrate the law of multiple proportions?

Accepted Answer

A) NH4 and NH4Cl 
B) ZnO2 and ZnCl2 
C) H2O and HCl 
D) NO and NO2 
E) CH4 and CO2 
A) NH4 and NH4Cl 
B) ZnO2 and ZnCl2 
C) H2O and HCl 
D) NO and NO2 
E) CH4 and CO2

Question 20

Which statement is not correct?

Accepted Answer

A) The mass of an alpha particle is 7300 times that of the electron. 
B) An alpha particle has a 2+ charge. 
C) Three types of radioactive emission are gamma rays,beta rays,and alpha particles. 
D) A gamma ray is high-energy light. 
E) There are only three types of radioactivity known to scientists today. 
A) The mass of an alpha particle is 7300 times that of the electron. 
B) An alpha particle has a 2+ charge. 
C) Three types of radioactive emission are gamma rays,beta rays,and alpha particles. 
D) A gamma ray is high-energy light. 
E) There are only three types of radioactivity known to scientists today.

Exam 2: Atoms, molecules, and Ions

All of the following are characteristics of metals except:

You are given a compound with the formula MCl2,in which M is a metal.You are told that the metal ion has 26 electrons.What is the identity of the metal?

Write the formula for: -aluminum hydroxide

Avogadro's hypothesis states that:

Write the formula for: -acetic acid

The numbers of protons,neutrons,and electrons in K+ are:

A species with 12 protons and 10 electrons is

Which of the following atomic symbols is incorrect?

By knowing the number of protons a neutral atom has,you should be able to determine

An isotope,X,of a particular element has an atomic number of 15 and a mass number of 31.Therefore:

Write the formula for: -sodium thiosulfate

Write the names of the following compounds: a) FeSO4 ________________ b) NaC2H3O2 ________________ c) KNO2 ________________ d) Ca(OH)2 ________________ e) NiCO3 ________________

Name the following compounds: -CCl4

Which of the following names is incorrect?

Write the chemical formulas for the following compounds or ions. a) nitrate ion _________ b) aluminum oxide _________ c) ammonium ion _________ d) perchloric acid _________ e) copper(II)bromide _________

All of the following are true except:

Which of the following statements from Dalton's atomic theory is no longer true,according to modern atomic theory?

Which of the following has 61 neutrons,47 protons,and 46 electrons?

Which of the following pairs of compounds can be used to illustrate the law of multiple proportions?

Which statement is not correct?

Chemical Foundations

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Thermochemistry

Atomic Structure and Periodicity

Bonding: General Concepts

Covalent Bonding: Orbitals

Liquids and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex Ion Equilibria

Spontaneity, entropy, and Free Energy

Electrochemistry

The Nucleus: a Chemists View

The Representative Elements

Transition Metals and Coordination Chemistry

Organic and Biological Molecules

Filters

You are given a compound with the formula MCl₂,in which M is a metal.You are told that the metal ion has 26 electrons.What is the identity of the metal?

The numbers of protons,neutrons,and electrons in K⁺ are:

Write the names of the following compounds: a) FeSO₄ _{________________} b) NaC₂H₃O₂ _{________________} c) KNO₂ _{________________} d) Ca(OH)₂ _{________________} e) NiCO₃ _{________________}

Name the following compounds: -CCl₄

Write the chemical formulas for the following compounds or ions. a) nitrate ion _____ b) aluminum oxide _ c) ammonium ion _ d) perchloric acid _ e) copper(II)bromide _____