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Test 6

Total questions: 75

Worksheet time: 2hrs 31mins

Name
Class
Date
1.

What is the formula for diphosphorus pentoxide?

a)

P2O5

b)

PO5

c)

P5O2

d)

Po2O5

2.

What is the chemical formula for an ionic compound of potassium and oxygen?

a)

KO

b)

K2O

c)

K2O2

d)

KO2

3.
When naming ionic compounds with transition metals you need to include roman numerals to show the _____ of the metal..
a)
atomic number
b)
mass number
c)
charge
d)
ionization energy
4.
Which of the following is NOT an ionic compound:
a)
CaO
b)
NaOH
c)
BaCl2
d)
Br2
5.

Which of the following combinations would need roman numerals in the name?

a)

potassium (K) + fluorine (F)

b)

beryllium (Be) + oxygen (O)

c)

boron (B) + iodine (I)

d)

chromium (Cr) + oxygen (O)

6.

Name the following ionic compound: MgSO4

a)

magnesium sulfoxide

b)

magnesium sulfide

c)

magnesium sulfate

d)

magnesium oxide

7.
    1.What question did the scientists who collected this data want to answer?
a)
Are there more earthworms in the soil in the spring or in the fall?
b)
What is the effect of plowing soil on the number of earthworms?
c)
How is the size of earthworms affected by the seasons?
d)
Does plowing soil affect how fast earthworms grow?
8.
What is the OFFICIAL name for H2O
a)
Hydrogen Oxide
b)
Oxygen Dinitride
c)
Agua
d)
Dihydrogen Monoxide
9.
You and your friends want to determine if fertilizer helps a Barrel Cactus grow a flower (you have a cactus at home, and you really want it to grow a flower). You suspect that fertilizer will help. You buy two cacti. You plant Cactus A in normal soil with no fertilizer and plant the other in a pot with fertilizer. After summer comes and goes, no flower grows. In fact, the cactus with fertilizer died. What is the question you and your friends are investigating?
a)
If the fertilizer caused the cactus to flower. 
b)
If the fertilizer caused the cactus to die. 
c)
If the fertilizer made the cactus die, but no generalizable conclusions can be drawn. 
d)
If the fertilizer will help the cactus produce a flower.
10.

Carla needs exactly 100.00 grams of sulfur powder for an experiment. The picture shows the mass on the scale so far. She did not zero the scale before starting. Carla knows that the weighing paper weighs 3.65 grams. How much more sulfur powder does Carla need?

a)

A) 4.5 grams

b)

A) 5.1 grams

c)

A) 5.0 grams

d)

A) 3.45 grams

11.

Darlene places a bolt in the graduated cylinder to find its volume. Its starting volume is 45.5mL. After she puts the bolt in the graduated cylinder the water level rose to 65.5mL. What is the volume of the bolt?

a)

10 cubic centimeters

b)

19.5 cubic centimeters

c)

20.5 cubic centimeters

d)

21 cubic centimeters

e)

20

12.
Kevin is identifying samples of three unknown metals. One of the properties he will use for identification is the density. The table shows the mass and volume for each sample. Kevin knows that the units of density are grams per cubic centimeter (g/cm3). Calculate the density for sample 3 and find the answer below. 
a)
A)  10.49 g/cm3
b)
A)  10.51 g/cm3
c)
A)  10.55 g/cm
d)
A)  10.49 g/cm
13.
Mr. Lee wants to confirm the metal used in a ring with a mass of 26.055 g. The volume of the ring is 1.35 cubic centimeters (cm3). What is the metal composition of the ring?
a)
A)  Sterling silver
b)
 18-ct white gold
c)
Pure gold
d)
=Platinum
14.
A student measured the velocities reached by an electric cart over time and recorded the data in the table shown. The student graphs the data, putting time in the horizontal (x) axis and the velocities reached on the vertical (y) axis. Which aspect of the graph reflects the acceleration of the cart?
a)
 y-intercept
b)
 y-axis scale
c)
slope
d)
 midpoint
15.
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
16.
What do the data in this graph show?
a)
Unplowed soil has more earthworms than plowed soil.
b)
Plowed soil has more earthworms than unplowed soil.
c)
Plowing of soil has no effect on the number of earthworms.
d)
The number of earthworms cannot be predicted
17.
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
18.
What was the net loss in glacier ice thickness between the years 1970 and 2000?
a)
8m
b)
6m
c)
7m
d)
10m
19.
The graph shows energy production in the United States in 1967 and 2007 for several sources of energy. Which conclusion is supported by the graph?
a)
A)  In 1967 more energy was produced in oil than in 2007
b)
A)  More energy was produced in 2007 than in 1967 in every category.
c)
A)  In 2007, more energy was produced from renewable energy sources than from fossil fuels.
d)
A)  People in the United States were more concerned about conserving energy in 1967 than they were in 2007.
20.
A group of students researched the melting points of some representative elements and made up cards containing the symbol and melting point of each element. They then grouped the cards together to make the portion of the periodic table shown. Which conclusion best fits the group’s data?
a)
Elements in periods 4,5, and 6  have melting points that increase and then decrease with increasing atomic number. Seeming not to fit a pattern
b)
A)  Group 2 metals have melting points that decrease with increasing atomic number.
c)
A)  Elements in a group have melting points that decrease with increasing atomic number.
d)
A)  Elements in all groups  metals have melting points that decrease with increasing atomic number
21.
A group of students measures the period of a pendulum while varying the pendulum length and mass. Their results are shown in the table. Which conclusion is best supported by their data?
a)
 Increasing the mass of a pendulum decreases its period.
b)
Increasing the mass of a pendulum does not affect the period.
c)
Increasing the length of a pendulum decreases its period. 
d)
Increasing the length and the mass of a pendulum causes an increase in its period
22.
Sun Li investigates the time for 10 grams of table salt to dissolve in 100 milliliters of water. She sets up six beakers, using the information in the table.  In which beaker would salt dissolve the slowest?
a)
1
b)
2
c)
3
d)
4
23.
Four student groups pour equal masses of sugar into equal volumes of water. The table lists the differences in conditions for each group. Which group would support the Hypothesis that increased surface area and heat will dissolve solutes faster?
a)
1
b)
2
c)
3
d)
4
24.

Jordan has a mixture of two solids that he has to separate. The solids are small granules that are the same size but different colors. She knows that the silver granules are aluminum and the white granules are salt. Which procedure is the Most reliable way to separate the mixture?

a)

Dissolve mixture in a universal solvent and filter. Then evaporate solvent to retrieve the salt.

b)

Dissolve mixture in a universal solvent and filter.

c)

Pass a magnet over the mixture.

d)

Sift the mixture through fine wire mesh.

25.
A  mixture of coffee grounds and coffee being poured through filter paper. Which property of the coffee grounds is being used to separate them out from the molecules?
a)
A)  Size of particles
b)
A)  polarity of the molecules
c)
A)  Size of pores in the filter
d)
A)  Temperature of the water
26.

The graph shows the temperature changes in a sample of water that is heated steadily from -40°C. Which process is happening in section 2 of the graph?

a)

A) Ice is getting warmer.

b)

A) Ice is melting.

c)

A) Ice is in the solid phase.

d)

A) Ice is changing to vapor and then to a liquid.

27.
Tony found an old iron cannonball that had rust on it. He determined that the iron had been exposed to air and water, which caused the rust. Which statement explains the type of change represented by this reaction?
a)
The reaction represents a chemical change because the rust is just a mixture of water and iron.
b)
The reaction represents a chemical change because the iron oxide has a different melting point than iron.
c)
The reaction represents a chemical change because both the original cannonball and the rusted cannonball are solids.
d)
The reaction represents a chemical change because iron oxide is a new substance formed on the cannonball.
28.
When a Bunsen burner is lit; why is the presence of a flame considered to be an indication of a chemical reaction?
a)
A)  A flame indicates a change of energy.
b)
A)  A flame indicates a phase change.
c)
A)  A flame indicates new physical energy is forming.
d)
A)  A flame indicates a change in chemical energy.
29.
In science class, a teacher heats a sample of white wax. As the wax warms, it turns to a clear liquid. When the teacher allows the wax to cool, it hardens again, retaining its original color and mass. Heating the wax is classified as a physical change because it does not
a)
cause a permanent change of energy .
b)
change how atoms are bonded to one another 
c)
change the mass in the wick.
d)
involve the destruction of molecules.
30.

Phillip watches a burning log in the fireplace. He makes these observations:


I. There is a strong smell of smoke.

II. The fire gives off heat.

III. Heat waves appear in the air above the log

IV. Light is emitted where there are flames.

V. Ashes form from the logs.


Which of Phillip’s observations are conclusive evidence that the burning log undergoes chemical changes and not just a physical change?

a)

A) observations I and V only

b)

A) observations II , III, and V only

c)

A) observations I, III, and V only

d)

A) observations I, IV, and V only

31.

Janelle is studying a sample of peroxide. She knows the chemical name for peroxide is Dihydrogen dioxide. What is the chemical formula for peroxide?

a)

H2O2

b)

2HO2

c)

HO

d)

2HO

32.

What is the chemical formula for hepta-carbon penta-hydrogen tetra-oxide ?

a)

C7H5O4

b)

C6H10O6

c)

C6H9O6

d)

C6H10O9

33.

Which inequality correctly compares the masses of electrons, protons, and neutrons?

a)

p+ > n0

b)

n0 < e-

c)

p+ > e-

d)

e- > n0

34.

Which of the following correctly shows the locations of the P+, e-, n0 subatomic particles of an atom?

a)

P+ and n0 are in the nucleus and the e- are in the outer valence shell

b)

P+ and n0 are in the valence shells and the e- are in the nucleus

c)

P+, e- , and n0 are in the nucleus and the e- are in the nucleus

d)

e- , and n0 are in the nucleus and the P+ are in the nucleus

35.

Holly is examining an isotope of manganese. She determines that each atom has 36 protons, 36 electrons, and 52 neutrons. What is the mass number for this manganese isotope?

a)

72 amu

b)

88 amu

c)

52 amu

d)

104 amu

36.

How does an atom get a -2 charge and become an ion?

a)

They gain 2 protons.

b)

They gain 2 electrons.

c)

They lose 2 protons.

d)

They lose 2 electrons.

37.

Transition metals are located in the _______ of the periodic table while the Nobal gasses are on the ___________?

a)

left, right

b)

right, left

c)

middle, right

d)

right, middle

38.

The diagram shows an outline of the periodic table with four elements labeled. Which element is a non-metal?

a)

1

b)

2

c)

3

d)

4

39.

A Bohr model of an unknown element shows 7p+ . What element is being diagrammed in the model?

a)

A) Oxygen

b)

A) Lithium

c)

A) Nitrogen

d)

A) Carbon

40.

What formula represents hexacarbon monoxide?

a)

C6O

b)

6CO2

c)

C2O

d)

C2O2

41.

Which formula represents the ionic compound Sodium Chloride?

a)

NaCl

b)

NaCl2

c)

NaCL

d)

NaCl2

42.

1. You set up an experiment in which you have four Hibiscus coccineus (scarlet hibiscus plants) each in 200g of organic soil in identical pots and all sitting in the same window sill with thee same full sunlight. You plan to water one plant with 50mL of tap water once per week, one with 50mL of tap water twice per week, one with 50mL of tap water three times per week, and one with 50mL of tap water four times per week. What is the testable question you are trying to answer?

a)

How is plant type affected by organic soil?

b)

How will light affect the growth of Hibiscus coccineus?

c)

How will the type of soil affect the growth of Hibiscus coccineus?

d)

How will the amount of water affect the growth of Hibiscus coccineus?

43.

•Let’s take a look at the data generated from an experiment where blue and green lights were used to grow tomato plants. Which of the following would make the data from this experiment more reliable?

a)

Grow the plants for more than 20 days

b)

Use white light as a control group for comparison

c)

Use more colors of light to see how the effects of each color compares

d)

Use different types of plants to see the effect different colors of light has on different plant species

44.
Chose the correct labels for the parts of a chemical equation.
a)
reactants yield products
b)
reactants make compounds
c)
products equal reactants
d)
products yield reactants
45.
A subscript tells you...
a)
the # of atoms in the entire equation
b)
the # of elements in the equation
c)
the # atoms of the element it sits behind
d)
the # of compounds present
46.
The Law of Conservation of Mass proves that -
a)
the number of atoms in a chemical reaction does not change
b)
there are more atoms on the reactant side than the product side
c)
there are more atoms on the product side than the reactant side
d)
no new matter can be made
47.

Aqueous means a substance is a

a)

liquid

b)

water molecule

c)

liquid because it was dissoved in water

d)

Liquid because it is in water

48.
Which of the following models best demonstrates a balanced chemical equation?
a)
F
b)
G
c)
H
d)
J
49.
The chemical formula for glucose, a simple sugar, is C6H12O6. The formula for ethanol is C2H6O. What accounts for the differences in these compounds?
a)
The elements that make up glucose are different than the elements that make up ethanol
b)
The ratio of the elements is different in ethanol than in glucose
c)
The chemical properties of the elements are different in glucose and ethanol
d)
Glucose has more elements than the ethanol
50.
Which of these formulas contain equal numbers of nitrogen atoms?
a)
Formulas I and III
b)
Formulas I and IV
c)
Formulas II and III
d)
Formulas I, II, and V
51.

___C3H8 +___O2 --> ___CO2 + ___H2O

a)

1,5,3,4

b)

1,2,2,4

c)

1,5,2,4

d)

already balanced

52.

__Al + __Fe3N2 -->__AlN + __Fe


Type your answer using the following format

#,#,# No spaces

(a)  

53.

__H2O2 --> __H2O + __O2


Type your answer using the following format

#,#,# No spaces

(a)  

54.
__C6H12O6 + __O2 --> __H2O + __CO2
a)
1,6,6,6
b)
already balanced
c)
1,6,1,6
d)
2,12,12,12
55.
__BF3 + __Li2SO3 --> __B2(SO3)3 + __LiF
a)
2,3,1,3
b)
2,3,1,6
c)
4,4,2,12
d)
3,3,1,9
56.
_AgNO3 + _Cu →_Cu(NO3)2 + _Ag
a)
2 AgNO3 + 2 Cu → 3 Cu(NO3)2 + 1 Ag
b)
2 AgNO3 + 1 Cu → 1 Cu(NO3)2 + 2 Ag
c)
1 AgNO3 + 2 Cu → 2 Cu(NO3)2 + 1 Ag
d)
3 AgNO3 + 2 Cu → 3 Cu(NO3)2 + 2 Ag
57.
In every balanced chemical equation, each side of the equation has the same number of ____.  
a)
coefficients
b)
moles
c)
molecules
d)
atoms of each element
58.

How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3

(a)  

59.

Which of the following represents a synthesis reaction?

a)

A + B --> AB

b)

A + BC --> AB + C

c)

AD + BC --> AB + CD

d)

AB --> A+B

60.

Which of the following represents a decomposition reaction?

a)

A + B --> AB

b)

A + BC --> AB + C

c)

AD + BC --> AB + CD

d)

AB --> A+B

61.

Which of the following represents a single-displacement reaction?

a)

A + B --> AB

b)

A + BC --> AB + C

c)

AD + BC --> AB + CD

d)

AB --> A+B

62.

Which of the following represents a double-displacement reaction?

a)

A + B --> AB

b)

A + BC --> AB + C

c)

AD + BC --> AB + CD

d)

AB --> A+B

63.

Which of the following would be examples of an exothermic reaction? (Choose all that apply)

a)

Burning wood

b)

Chemical ice pack

c)

Fireworks Exploding

d)

Photosynthesis

e)

Human body temperature

64.
During an exothermic reaction, what happens to energy in relation to the surroundings?
a)
released to
b)
absorbed from
c)
 mixed with
65.
Use the reaction equation to answer the question.      
 6CO2 + 6H2O-->C6 H12 O6  + 6O2
The reaction equation shows a common chemical reaction. Where does this reaction commonly occur?
a)
in the lungs of an animal
b)
in the mouth as humans exhale carbon dioxide
c)
in the leaves of plants
d)
in animal digestive systems
66.

The reaction equation showing the formation of iron (III) oxide is not balanced.


_?_N3 +_?_H3 --> _?_NH3


Which set of coefficients, when inserted in the blank spaces in order, will balance the equation?

a)

1, 3, 3

b)

1, 2, 2

c)

2, 1, 1

d)

2, 2, 1

67.

What slows a reaction down?

a)

Endothermic

b)

Catalyst

c)

Exothermic

d)

Inhibitor

e)

Synthesis

68.

Which is a reaction where heat is absorbed?

a)

Endothermic

b)

Catalyst

c)

Exothermic

d)

Inhibitor

e)

Synthesis

69.

Which of the following would be examples of an exothermic reaction? (Choose all that apply)

a)

Burning wood

b)

Chemical ice pack

c)

Fireworks Exploding

d)

Photosynthesis

e)

Human body temperature

70.

Which of the following would be examples of an endothermic reaction? (Choose all that apply)

a)

Ice melting

b)

Chemical ice pack

c)

Fireworks Exploding

d)

Photosynthesis

e)

Car engine

71.
During an endothermic reaction, what happens to energy in relation to the surroundings?
a)
released to
b)
absorbed from
c)
 mixed with
72.
Is photosenthysis an Exothermic or an Endothermic reaction?
a)
Endothermic
b)
Exothermic
73.
What type of reaction is shown in the photo?
a)
Exothermic
b)
Isothermic
c)
Endothermic
d)
None of the  above
74.

What type of reaction occurs in a hand warmer?

a)

exothermic

b)

endothermic

75.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the independent variable?
a)
The Song
b)
The Reed
c)
The Applause

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