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Chapter 10 and 11 Retake Test

Modified True/False
Indicate whether the sentence or statement is true or false.  If false, change the identified word or phrase to make the sentence or statement true.
 

1. 

Particles formed from the covalent bonding of atoms are called ions.  _______________

 

2. 

Molecules are neutral.  _______________

 

3. 

A term that means "without water" is anhydrous.  _______________

 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

4. 

In a chemical formula, the ratio of atoms in the compound is shown by numbers called _____.
a.
hydrates
b.
chemical symbols
c.
oxidation numbers
d.
subscripts
e.
superscripts
 

5. 

A group of atoms that acts together as one charged atom is a _____.
a.
crystal
c.
negative ion
b.
molecule
d.
polyatomic ion
 

6. 

The elements that make up a compound and the ratios of the atoms of those elements can be shown in a _____.
a.
chemical formula
c.
subscript
b.
chemical symbol
d.
superscript
 

7. 

A chemical bond that occurs when atoms share electrons is _____ bond.
a.
a covalent
c.
a magnetic
b.
an ionic
d.
a polyatomic
 

8. 

The name given to the combining ability of an atom is _____.
a.
atomic mass
c.
ionic number
b.
atomic number
d.
oxidation number
 

9. 

The sum of the oxidation numbers in a neutral compound is _____.
a.
a negative number
c.
a positive number
b.
one
d.
zero
 

10. 

The oxidation number of an atom is shown with a _____.
a.
negative number
c.
subscript
b.
positive number
d.
superscript
 

11. 

Which of the following correctly shows the formula for a hydrate?
a.
H2O
c.
MgSO4(H2O)7
b.
H2O2
d.
MgSO4 · 7H2O
 

12. 

How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?
a.
2
b.
4
c.
6
d.
8
e.
10
 

13. 

What kind of chemical bond is formed when electrons are transferred from atom to atom?
a.
covalent
c.
ionic
b.
hydrate
d.
magnetic
 

14. 

What is the total number of atoms in the compound Ca(ClO3)2?
a.
2
b.
3
c.
5
d.
6
e.
9
 

15. 

How many hydrogen atoms are present in one molecule of ammonium acetate, NH4C2H3O2?
a.
3
b.
4
c.
7
d.
11
e.
12
 

16. 

What is the name of the compound with the formula NaCl?
a.
chlorine sodiate
c.
sodium chloride
b.
sodium chlorate
d.
sodium dichloride
 

17. 

Why do the noble gases NOT form compounds readily?
a.
They have empty outer energy levels.
b.
They have no electrons.
c.
They have seven electrons in the outer energy levels.
d.
Their outer energy levels are completely filled with electrons.
 

18. 

What is the ratio of potassium atoms to oxygen atoms in a binary compound made from these two elements?
a.
1:1
b.
1:2
c.
1:3
d.
2:1
e.
3:1
 

19. 

What is the name of a binary compound made up of lithium and chlorine?
a.
chlorine lithiate
c.
lithium chloride
b.
chlorine lithium
d.
lithium chlorate
 

20. 

Which of the following is the correct formula for magnesium nitrate?
a.
MgNO3
c.
Mg(NO3)2
b.
Mg2NO3
d.
Mg2(NO3)2
 

21. 

What is the charge of phosphate in K3PO4?
a.
7-
b.
3-
c.
1+
d.
5+
e.
4+
 

22. 

What is the correct name for K2SO4?
a.
potassium disulfide
c.
potassium sulfide
b.
potassium sulfate
d.
potassium(II) sulfate
 

23. 

What is the correct formula for magnesium oxide?
a.
MgO
c.
Mg2O2
b.
MgO2
d.
Mg2O
 

24. 

Using other insects to eat harmful insects is a safe alternative to _____.
a.
herbicides
c.
Freon
b.
insecticides
d.
disinfectants
 

25. 

Each inner energy level of an atom has maximum numbers of _____ it can hold.
a.
electrons
c.
quarks
b.
neutrons
d.
protons
 

26. 

Dot diagrams are used to represent _____.
a.
atomic numbers
b.
atomic mass
c.
isotopes
d.
outer electrons
e.
the structure of the nucleus
 

27. 

A chemical symbol represents the _____ of an element.
a.
name
b.
reaction
c.
group
d.
structure
e.
type
 

28. 

Horizontal rows of the periodic table are called _____.
a.
clusters
b.
families
c.
groups
d.
periods
e.
quarks
 

29. 

Atoms of the same element with different numbers of neutrons are called _____.
a.
isotopes
b.
metals
c.
metalloids
d.
radioactive
e.
transition elements
 

30. 

A particle that moves around the nucleus is _____.
a.
an electron
b.
an ion
c.
a neutron
d.
a quark
e.
a proton
 

31. 

Elements in Groups 3 through 12 of the periodic table are called _____.
a.
isotopes
b.
metalloids
c.
metals
d.
noble gases
e.
transition elements
 

32. 

A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is _____.
a.
26
b.
30
c.
52
d.
56
e.
82
 

33. 

At room temperature, most metals are _____.
a.
gases
c.
radioactive
b.
liquids
d.
solids
 

34. 

The process by which solid iodine particles change directly to a gas without first becoming a liquid is called _____.
a.
condensation
b.
evaporation
c.
ionization
d.
radioactivity
e.
sublimation
 

35. 

Substances that conduct an electric current only under certain conditions are most likely to be _____.
a.
metals
c.
noble gases
b.
metalloids
d.
nonmetals
 

36. 

Hydrogen is grouped with the alkali metals because it _____.
a.
does not readily form compounds
c.
is a gas
b.
has one electron in its outer energy level
d.
is a metal
 

37. 

A chemical family whose members exist as diatomic molecules in the gaseous phase is the _____.
a.
actinide series
c.
halogens
b.
alkali metals
d.
lanthanide series
 

38. 

When hydrogen reacts with the active metals, it forms a chemical bond by _____.
a.
gaining one electron
c.
losing two electrons
b.
losing one electron
d.
sharing electrons
 

39. 

The elements in Groups 3-12 of the periodic table are the _____.
a.
actinides
b.
alkaline earth metals
c.
alkali metals
d.
halogens
e.
transition elements
 

40. 

A family of elements that has two electrons in its outer energy level is the _____.
a.
actinides
b.
alkaline earth metals
c.
alkali metals
d.
halogens
e.
transition elements
 

41. 

Bromine is the only halogen and nonmetal that is normally a _____.
a.
gas
c.
semiconductor
b.
liquid
d.
solid
 

42. 

The only metal that is a liquid at room temperature is _____.
a.
copper
b.
mercury
c.
silver
d.
sodium
e.
zinc
 

43. 

A family of elements that contains the most reactive metals is the _____.
a.
actinides
b.
alkaline earth metals
c.
alkali metals
d.
transition elements
e.
noble gases
 



 
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