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LCA #4 Review

Total questions: 101

Worksheet time: 1hrs 22mins

Name
Class
Date
1.

What are the 3 components of ATOMS ?

a)

Proton

b)

Mass

c)

Electron

d)

Element

e)

Neutron

2.

The ___________ is Positively (+) Charged

a)

Electron

b)

Proton

c)

Neutron

d)

Element

3.

The __________ has the same number of Protons but different number of Neutrons.

a)

Ion

b)

Element

c)

Isotopes

d)

Atom

4.

The _____________ has different numbers of Protons and Electrons.

a)

Ion

b)

Element

c)

Atom

d)

Isotopes

5.

The Atom that has EQUAL number of Protons and electrons is called ___________ atom.

a)

Neutrally charged

b)

Positively charged

c)

Negatively charged

d)

Element

6.

The _____________ has no charge.

a)

Electron

b)

Element

c)

Neutron

d)

Proton

7.

The ___________ is Negatively (-) Charged.

a)

Proton

b)

Electron

c)

Atom

d)

Neutron

8.

This is called a __________ .

a)

Positive Ion

b)

Negative Ion

c)

Neutron

9.

This is called a ____________ .

a)

Neutron

b)

Electron

c)

Negative Ion

d)

Positive Ion

10.

What is the mass number of this atom?

a)

7

b)

14

c)

21

d)

28

11.

How many neutrons does C-13 have?

a)

6

b)

7

c)

12

d)

13

12.

How many valence electrons does this atom have?

a)

19

b)

20

c)

39

d)

8

e)

1

13.

Which electron(s) are involved in chemical reactions?

a)

green

b)

blue

c)

pink

14.
Which periodic group has the smallest atomic radius?
a)
Alkali metals
b)
Halogens
c)
Noble Gases
d)
Transition metals
15.
Electronegativity is...
a)
how good an atom is at attracting electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
16.

Which statement is true?

a)

Cations are negatively charged ions.

b)

Anions are positively charged ions.

c)

Cations are positively charged electrons.

d)

Anions are negatively charged ions.

17.

If a potassium atom lost one electron, what would be the symbol for that ion?

a)
b)
c)
d)
18.

Where are metals located on the periodic table?

a)

Right side of periodic table

b)

Left side of periodic table

c)

zig-zag line of periodic table

d)

none of the above

19.

Chose all properties of metal:

a)

Brittle

b)

Shiny

c)

Malleable

d)

Good Conductors

e)

Ductile

20.

Chose all properties of

non-metal:

a)

Brittle

b)

Dull

c)

Malleable

d)

Good Conductors

e)

Insulator

21.

Chose all properties of

metalloids:

a)

can be Brittle

b)

can be shiny

c)

can be Malleable

d)

Semi-conductor

e)

can be Insulator

22.

How are ions formed?

a)

Gaining or losing protons

b)

Gaining or losing neutrons

c)

Gaining or losing electrons

d)

Gaining of losing mass

23.

What type of bonds share electrons?

a)

hydrogen

b)

covalent

c)

ionic

24.

What type of bond is shown in the image?

a)

Hydrogen

b)

Ionic

c)

Covalent

25.

Which has a lower pH?

a)

acids

b)

bases

26.

Which has a higher amount of OH- ions?

a)

acids

b)

bases

27.

What type of reactions absorb energy?

a)

Endothermic

b)

Exothermic

28.

Valence electrons are found

a)

outermost energy level

b)

innermost energy level

c)

some where in the electron cloud

29.
Which of the following describes covalent bonds?
a)
Bonds form because of opposite charges
b)
Bonds form to fill outer electron shells
c)
Electrons are transferred between atoms
d)
Covalent bonds are magical
30.

Ionic or covalent?

CH4

a)

covalent

b)

ionic

31.

Ionic or covalent?

CaCl2

a)

ionic

b)

covalent

32.

what is the name of CCl4?

a)

carbon tetrachloride

b)

monocarbon tetrachloride

c)

tetracarbon monochloride

d)

carbon chloride

33.

What is the name of the compound SO2

a)

Monosulfate oxide

b)

Sulfur Dioxide

c)

Monosulfur dioxide

34.

What is the name of the compound P2O5

a)

Pentaphosphorus dioxide

b)

Phoshphide dioxide

c)

Diphosphorus pentoxide

35.

What is the name for MgF2 ?

a)

magnesium fluoride

b)

manganese Phosphide

c)

magnesium(III) fluoride

d)

magnesium fluoride(II)

36.
Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)
a)
H3SO4
b)
HSO4
c)
H4S3O
d)
H2O
37.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
38.
Is being able to be malleable physical or chemical
a)
physical 
b)
chemical 
c)
ducktile 
d)
malleable
39.

Each family has similar:

a)

Properties & Reactivity

b)

Protons & Neutrons

c)

Reactivity & Size

d)

Properties & Neutrons

40.
Mg2+ and Cl- create...
a)
Mg2Cl
b)
MgCl2
c)
Mg2Cl2
d)
MgCl
41.
Ca2+ and N3- create...
a)
Ca2N3
b)
Ca3N2
c)
CaN3
d)
Ca2N
42.

Na+ and Cl- create...

a)

Na2Cl

b)

NaCl2

c)

Na2Cl2

d)

NaCl

43.

Potassium and Sulfur create...

a)

KS

b)

KS2

c)

K2S

d)

K2S2

44.

What does the Law of Conservation of Mass say? It says,


"During a chemical reaction, mass is neither _______ or destroyed."

a)

burned

b)

created

c)

melted

45.

Balance this equation:

H2 + Cl2 ---> HCl

a)

It is balanced.

b)

H2 + Cl2 ---> 2HCl

c)

3H2 + Cl2 ---> 6HCl

d)

H2 + 3Cl2 ---> 6HCl

46.
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
a)
2, 6, 3, 2
b)
it is already balanced
c)
4, 12, 3, 4
d)
2, 1, 4, 5
47.
Balance this equation-
__P4 + __O2 --> __P2O3
a)
it is already balanced
b)
2, 1, 3
c)
1, 2, 3
d)
1, 3, 2
48.

Nuclear power plant uses ____ for fuel.

a)

steel

b)

coal

c)

uranium

d)

hydrogen

49.
Splitting a uranium atom is called - 
a)
fission
b)
fusion
50.
What is an advantage  of nuclear energy?
a)
radioactive waste
b)
no pollution
c)
we will never run out
d)
it is the safest way to make energy
51.

What nuclear process occurs in the sun?

a)

fission

b)

fusion

c)

endothermic

d)

atomic bomb

52.

Which pH value indicates the most basic solution?

a)

7

b)

8

c)

3

d)

11

53.

Which is the most likely pH for a solution of a weak acid?

a)

1

b)

5

c)

11

d)

14

54.

When the pH of a solution becomes more basic, the number on the pH scale

a)

decreases

b)

increases

c)

stays the same

d)

triples

55.

Which property is not associated with an acid?

a)

dissolves metals

b)

turns blue litmus red

c)

has a bitter taste

56.

Tastes bitter.

a)

Acids

b)

Bases

c)

Salts

d)

All

57.

Turns red litmus blue.

a)

Acids

b)

Bases

c)

Salts

d)

All

58.

Which chemical tastes sour?

a)

Acid

b)

Base

59.
Describe the substance between letters D and E. 
a)
Gas
b)
Liquid
c)
Melting
d)
Evaporating
60.
Between which points is the temperature of the substance remaining constant?
a)
A-B only. 
b)
A-B, C-D, E-F
c)
B-C only. 
d)
B-C, D-E
61.

Given the heating curve of a solid being heated at a constant rate, what is the boiling point of this substance?

a)

20°C

b)

50°C

c)

110°C

d)

170°C

62.

Given the heating curve of water, what is happening to potential and kinetic energy during segment CD?

a)

the potential energy and kinetic energy both increase

b)

the potential energy increases while the kinetic energy decreases

c)

the potential energy is constant while the kinetic energy increases

d)

the potential energy increases while the kinetic energy is constant

63.

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K2Cr2O7?

a)

60 ºC

b)

30 ºC

c)

50 ºC

d)

83 ºC

64.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
65.

25 grams of NaCl are dissolved in 100 mL of water at 60 C. How many more grams need to be dissolved for the solution to be saturated?

a)

13 grams

b)

25 grams

c)

6 grams

d)

38 grams

66.

How many grams of K2Cr2O7, are soluble in 50 g of water at 90ºC?

a)

70 grams

b)

35 grams

c)

140 grams

d)

105 grams

67.
Which solute is the least soluble at 90 ⁰C?
a)
SO2
b)
KClO3
c)
KI
d)
HCl
68.

If we continuously heat a liquid, what happens to the temperature of when it starts to boil (during a phase change)?

a)

The temperature stays the same

b)

The temperature increases

c)

The temperature decreases

69.

What happens when two forces act in the same direction?

a)

the forces add together

b)

the forces cancel each other out

c)

the stronger force takes over

70.

A student inflates a balloon with helium then places it in the freezer. The student should expect

a)

the balloon's volume to increase

b)

the balloon's volume to decrease

c)

the balloon's moles to increase

d)

the balloon's moles to decrease

71.
Which container will have lower pressure?
a)
left
b)
right
c)
they both have the same pressure
72.
Which gas law or principle explains what is happening in this video clip?
a)
Boyle's Law
b)
Charles's Law
c)
Pascal's Principle
d)
Bernoulli's Principle
73.
When the volume of a gas is decreased the pressure of a gas will increase.  This statement about gases is ... 
a)
Boyle's Law
b)
Charles's Law
c)
Bernoulli's Principle
d)
Pascal's Principle
74.
When the temperature of a gas is increased, it's volume will also increase. This statement is... 
a)
Boyle's Law
b)
Charles's Law
c)
Bernoulli's Principle
d)
Pascal's Principle
75.
When the particles of a substance are heated their motion...  
a)
increases.
b)
decreases.
c)
remains the same.
76.

Lola wants to measure her average speed when biking around her neighborhood. What information does Lola need to gather?

a)

bike weight and total time traveled

b)

distance traveled and direction

c)

distance traveled and total time traveled

d)

bike weight and direction

77.

Which of the following statements about the car's motion is true?

a)

The total time for the car trip was 50 minutes.

b)

The car returned to where it had started the trip at the end of the trip.

c)

The car did not slow down during the trip.

d)

The car did not travel at a constant speed during the entire trip.

78.

What is acceleration?

a)

an increase in speed

b)

a decrease in speed

c)

a change in direction

d)

all of these are examples

79.

Describe the object's motion from A to B (TWO Answers):

a)

Speeding Up

b)

Slowing Down

c)

Constant Speed

d)

Not Moving

80.

Describe the object's motion from B to C:

a)

Speeding Up

b)

Slowing Down

c)

Constant Speed

d)

Not Moving

81.

Describe the object's motion from C to D:

a)

Speeding Up

b)

Slowing Down

c)

Constant Speed

d)

Not Moving

82.

Describe the object's motion from D to E:

a)

Speeding Up

b)

Slowing Down

c)

Constant Speed

d)

Not Moving

83.

Describe the object's motion from E to F (TWO Answers):

a)

Speeding Up

b)

Slowing Down

c)

Constant Speed

d)

Not Moving

84.
What kind of acceleration is shown here?
a)
positive
b)
negative
c)
none
d)
varies
85.
Is the speed constant or non-constant?
a)
constant
b)
non-constant
86.
Which section of the graph shows decreasing velocity?
a)
CD
b)
DE
c)
EF
d)
GH
87.
Which section of the graph shows increasing velocity?
a)
AB
b)
BC
c)
DE
d)
EF
88.

How do these waves compare?

a)

wave 2 has a higher frequency than wave 4

b)

all have the same frequency

c)

all have the same wavelength

d)

wave 3 has a longer wavelength than wave 4

89.

What type of waves are usually found in space?

a)

Mechanical

b)

Electromagnetic

90.

happens when a wave bounces back after hitting a barrier

a)

reflection

b)

refraction

c)

diffraction

d)

interference

91.

a reflected sound wave

a)

refraction

b)

diffraction

c)

echo

d)

resonance

92.

the bending of a wave as the wave passes from one medium to another at an angle

a)

refraction

b)

transmitted

c)

reflection

d)

echo

93.

If I moved the waves closer together, what would happen to the frequency?

a)

decrease

b)

increase

c)

no effect

d)

applesauce

94.

When frequency increases, happens to wavelength?

a)

decreases

b)

increases

c)

no effect

95.

According to the data table, which material has the greatest density?

a)

Material A

b)

Material B

c)

Material C

d)

Material D

96.

As you look from left to right (radio waves to gamma waves), what happens to wavelength?

a)

Wavelength decreases

b)

Wavelength increases

c)

Wavelength is not affected

97.

Which of the following wave types have a shorter wavelength/higher energy than our visible light?

a)

gamma rays

b)

microwaves

c)

infrared waves

d)

x-rays

98.

This octopus' skin _______ the wavelength of blue light, and ________ all others.

a)

reflects; absorbs

b)

reflects; transmits

c)

transmits; absorbs

d)

transmits; reflects

99.

Which diagram shows the lowest wavelength?

a)

A

b)

B

c)

C

d)

D

100.

If these were sound waves, which diagram shows the loudest sound?

a)

A

b)

B

c)

C

d)

D

101.

Which diagram represents a sound wave with the lowest pitch?

a)

A

b)

B

c)

C

d)

D

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