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1st Semester exam 25 part 2

Total questions: 137

Worksheet time: 3hrs 1mins

Name
Class
Date
1.

Which of the following is NOT true: In a gas the particles ____.

a)

have no cohesion

b)

are farthest apart

c)

have least energy

d)

have no set volume or shape

2.

Which of the following is NOT true, In a solid the particles ____

a)

have least cohesion

b)

have the least energy energy

c)

have definite shape and volume

d)

are in fixed position

3.

higher temperature =

a)

particles have more energy

b)

particles have less energy

c)

130°C

d)

Temperature has nothing to do with particle energy.

4.

At which temperature would the particles of a substance that have the most energy

a)

78°C

b)

24°C

c)

104°C

d)

140°C

5.

____ is the process of a liquid becoming a gas.

a)

Evaporation

b)

Vaporization

c)

Sublimation

d)

Boiling

6.

state of matter-definite volume, but no definite shape

a)

solid

b)

liquid

c)

gas

d)

plasma

7.

Matter in the __ state is a collection of free-moving electrons and ions.

a)

liquid

b)

plasma

c)

gas

d)

solid

8.

___ is a measure of the average kinetic energy of all particles in a substance.

a)

Thermal energy

b)

Heat of vaporization

c)

Boiling Point

d)

Temperature

9.

In order to change the state of any substance, you must

a)

change the energy of the particles

b)

slow down the particles

c)

speed up the particles

d)

Particle speed has nothing to do with state of matter.

10.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
11.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
d)

has no definite shape or volume

12.

Freezing shows a state change from

a)

Solid to gas

b)

Liquid to solid

c)

Gas to solid

13.

Boiling shows a state change from

a)

liquid to gas

b)

gas to solid

c)

gas to liquid

14.
Which state of matter has a definite shape?
a)
solid
b)
liquid
c)
gas
15.

Which diagram illustrates a state of matter that has no definite shape, but has a definite volume?

a)

1

b)

2

c)

3

16.

Particles in a ______________________ move quickly and are far apart.

a)

gas

b)

solid

c)

liquid

17.

Solid to Gas

a)

Deposition

b)

Sublimation

c)

Evaporation

18.

The slower the particles in a substance move,

a)

the colder it is.

b)

the warmer it is.

c)

the more energy it has.

19.
The temperature of a substance increases as___.
a)
the substance expands
b)
the average kinetic energy of its particles increases
c)
the substance's volume increases
d)
the substance's mass increases
20.

Gas to Plasma

a)

Vaporization

b)

Ionization

c)

Sublimation

21.

Particles move relative to each other, but remain in contact with each other.

a)

solid

b)

liquid

c)

gas

22.

What happens to particles when their temperature increases?

a)

The particles move slower

b)

The particles move faster

c)

The particles lose mass

d)

The particles gain mass

23.

The amount of space something takes up is its...

a)

Mass

b)

Volume

c)

Thermal Energy

d)

Temperature

24.

The energy of MOTION is...

a)

chemical energy

b)

radiant energy

c)

potential energy

d)

kinetic energy

25.
Which of the following statements is NOT true of all different types of matter?
a)
They are made of atoms and molecules
b)
The particles are always in motion
c)
The particles always move at the same speed
d)
They are made of particles that are too small to see
26.

Which state of matter does this picture show?

a)

Solid

b)

Liquid

c)

Gas

27.

What is happening in this picture of this lake freezing?

a)

Molecules are speeding up

b)

Molecules are slowing down

28.

You have a pitcher of water at 100 degrees Celsius and a bathtub filled with water at 70 degrees Celsius. Which one has more kinetic energy?

a)

The pitcher because the water is hotter

b)

Neither, they both have the same amount of kinetic energy.

c)

The bathtub because there are more particles in motion.

29.

When a metal can be pounded into then sheets or molded into shapes, it is ______________.

a)

ductile

b)

malleable

c)

flammable

d)

soluble

30.

The basic building blocks of all matter are ___.

a)

molecules

b)

compounds

c)

mixtures

d)

atoms

31.

Combinations of two or more substances that can be separated by physical means are __.

a)

mixtures

b)

heterogeneous mixtures

c)

homogeneous mixtures

d)

compounds

32.

Conductivity, density, boiling point, and freezing point are all ___ physical properties and can be used to identify a substance.

a)

chemical

b)

physical

c)

characteristic

d)

classified

33.

Mixtures that separate when left standing out are ___.

a)

homogeneous

b)

heterogeneous

c)

solutions

d)

compounds

34.

A ___ describes the ability of a substance to change into a new substance(s).

a)

chemical change

b)

chemical property

c)

physical change

d)

physical property

35.

Matter can be mixtures or ___.

a)

compounds

b)

elements

c)

pure substances

d)

atoms

36.

Which of the following can be indicators of a chemical change? (MR)

a)

change of color

b)

dissolving

c)

change of state

d)

releasing a gas

37.

___ have variable composition and the components retain their characteristic properties. These can be separated by physical means.

a)

Mixtures

b)

Compounds

c)

Elements

d)

Pure Substances

38.

Which of the following are always physical changes? (MR)

a)

reacting with another substance

b)

change of state

c)

burning

d)

dissolving

39.

A metal that can be shaped or pulled into wire, is _____.

a)

ductile

b)

malleable

c)

flammable

d)

soluble

40.

The solute is the substance that something is dissolved in. The solution is mostly made of solute.

a)

True

b)

False

41.

___ changes make new products with different characteristics from the ingredients.

a)

Physical

b)

Chemical

c)

Mixture

d)

Compound

42.

___ are made from atoms of 2 or more elements, joined chemically.

a)

Homogeneous mixtures

b)

Heterogeneous mixtures

c)

Compounds

d)

Elements

43.

A ___ mixture has the same composition throughout. Its components are indistinguishable.

a)

solution

b)

colloid

c)

homogeneous

d)

heterogeneous

44.

Substances with high viscosity move more slowly than those with low viscosity.

a)

True

b)

False

45.

Which of the following are chemical properties? (MR)

a)

electrical conductivity

b)

pH

c)

magnetism

d)

reactivity

e)

hardness

46.

A ____ change does not change the identity of the substances participating in the change.

a)

physical

b)

homogeneous

c)

chemical

d)

heterogeneous

47.

A ___ mixture has components that can be distinguished one from another.

a)

homogeneous

b)

chemical

c)

heterogeneous

d)

physical

48.

This image shows a(n)

a)

atom

b)

compound

c)

element

d)

mixture

49.

A property of matter that measures a substance's ability to dissolve in a solvent is ___.

a)

ductility

b)

solubility

c)

malleability

d)

thermal conductivity

50.

A ___ change alters the identity of the substances involved.

a)

physical

b)

chemical

c)

mixture

d)

pure substance

51.

Properties that do not depend on the quantity of the sample are ___. They can be used to identify an unknown substance.

a)

chemical

b)

characteristic

c)

physical

d)

categorical

52.

In Kool-Aid, the solvent is the water. The solutes are the flavoring and sugar.

a)

True

b)

False

53.

___ have a fixed composition and cannot be separated into simpler substances by physical means.

a)

Heterogeneous

b)

Homogeneous

c)

Pure Substances

d)

Mixtures

54.

The characteristic properties of different samples of the same ___ will not vary.

a)

mixture

b)

pure substance

c)

physical change

d)

chemical change

55.

Two types of a pure substance are ___. (MR)

a)

homogeneous

b)

heterogeneous

c)

elements

d)

compounds

e)

mixtures

56.

The ___ states that matter cannot be created or destroyed, only transformed and transferred.

a)

Law of Conservation of Dynamics

b)

Law of Conservation of Mass

c)

Theory of Conservation of Dynamics

d)

Theory of Conservation of Mass

57.

An element is.....

a)

...made up of lots of atoms

b)

... is more than one kind of atom

c)

...made up of one kind of atom

d)

.... made of one atom

58.

Why is water not an element?

a)

It is made of hydrogen and carbon atoms

b)

It is made of oxygen and hydrogen atoms

c)

It is made of oxygen atoms

d)

It is made of hydrogen atoms

59.
  What is a pure substance made of two or more elements that are chemically combined called?
a)
A. element
b)
B. compound     
c)
C. mixture
d)
D. solution
60.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
61.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
62.

It is a combination of two or more substances in which each substance maintains its physical property.

a)

Solution

b)

Mixture

c)

Solubility

63.
Which of these is not a mixture? 
a)
oil and water
b)
sand and soda
c)
diet soda
d)
all are mixtures
64.

This image shows a(n)

a)

atom

b)

compound

c)

element

d)

mixture

65.
Which of the following is NOT a pure substance?
a)
milk
b)
oxygen
c)
water
d)
carbon dioxide
66.
If an unknown substance CANNOT be broken down into simpler substances, it is 
a)
a compound
b)
an element
c)
a homogeneous mixture
d)
a heterogeneous mixture
67.

How are Mixtures made?

a)

Chemically

b)

Physically

c)

Physically and Chemically

d)

Found in Nature

68.

chlorine gas, Cl2, is an example of a(n)

a)

element

b)

compound

c)

mixture

69.

bronze, an alloy of many different metals, is an example of a( n)

a)

element

b)

compound

c)

mixture

70.

gold, Au, is an example of a(n)

a)

element

b)

compound

c)

mixture

71.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
72.

Milk is an example of

a)

a hetergeneous mixture

b)

a solution

c)

a colloid

d)

a suspension

73.

Particles in a colloid are large enough to scatter a beam of light as it passes through. This is known as the

a)

Law of Conservation of Mass

b)

The Theory of Kinetic Motion

c)

The Tyndall Effect

d)

The Universal Law of Gravitation

74.

If I combined 50g of baking soda with 30mL of lemon juice in a chemical reaction, what should the mass of the products be?

a)

20 g

b)

50 g

c)

80 g

d)

None of these

75.

Which of the following is not a way to physically separate a mixture?

a)

distillation

b)

magnetic attraction

c)

solubility

d)

electrolysis

76.

One difference between a suspension and colloid is that

a)

in a colloid the particles will settle out over time

b)

in a suspension beams of light will be scattered

c)

a colloid is a homogeneous mixture

d)

that particles in a colloid will never settle out if left standing

77.

This image shows a(n)

a)

atom

b)

compound

c)

element

d)

mixture

78.

Which of the following is NOT an example of pure substance

a)

table salt

b)

concrete

c)

sulfur

d)

sugar

79.

What is the smallest part of an element that will still maintain all the element's properties?

a)

A. atom

b)

B. proton

c)

C. electron.

d)

D. quark

80.

What is the name of the electrons in the outermost energy level?

a)

ions

b)

isotopes

c)

quarks

d)

valence electrons

81.

How are elements arranged in the Periodic Table?

a)

by atomic mass

b)

by atomic number

c)

by the number of neutrons

82.

What does the atomic number of an element represent?

a)

The number of protons + the number of neutrons

b)

The number of protons + electrons

c)

the number of electrons

d)

the number of protons

83.

Which subatomic particle has a positive charge?

a)
proton
b)
neutron
c)
electron
d)
all of these
84.

What is the name of the most reactive group on the on the Periodic Table of Elements?

a)

Noble Gases

b)

Transition Metals

c)

Alkaline Earth Metals

d)

Alkali Metals

85.

What is the name of the group of elements that have a full outer shell of electrons and, therefore, are unreactive.

a)

Halogens

b)

Lanthanides

c)

Alkali Earth metals

d)

Noble Gases

86.

What is the atomic number of Silver?

a)

47

b)

61

c)

108

d)

155

87.

How many protons, neutrons, electrons are in a neutral atom of Silver

a)

p-47, n- 47, e - 47

b)

p- 47, n- 61, e- 47

c)

p- 47, n- 108, e- 47

d)

p- 108, n- 155, e-47

88.

What is the atomic number of Gallium?

a)

70

b)

39

c)

31

d)

101

89.

How many protons, neutrons, and electrons are in a neutral atom of Gallium?

a)

p- 31, n-39, e-31

b)

p- 69, n- 31, e- 131

c)

p- 31, n- 70, e- 31

d)

p- 31, n- 70, e- 31

90.

In what group are the Halogens found?

a)
Group 1
b)
Group 7
c)

Group 17

d)
Group 18
91.

What do the different periods tell us about an element on the periodic table?

a)

The number of valance electrons

b)

The number of energy levels

c)

the atomic mass

92.

What is the name for the elements in Groups 3 - 12 ?

a)
Alkaline Earth Metals
b)
Nobel Gases
c)
Transition Metals
d)
NonMetals
93.

What is the name of the group of elements that have characteristics of both metals and nonmetals?

a)

Transition metals

b)

Inner Transition metals

c)

Metalloids

d)

Alkali Metals

94.

Which element has properties most similar to Phosphorus (P)?

a)

Silicon (Si)

b)

Selenium (Se)

c)

Argon (Ar)

d)

Nitrogen (N)

95.

Who is credited with coming up the idea that electrons traveled in fixed orbits, or energy levels, around the nucleus?

a)

John Dalton

b)

J.J. Thomson

c)

Ernest Rutherford

d)

Niels Bohr

96.

This is the name of the model of the atom that is most widely accepted today. It states that the locations of electrons is impossible to predict, but the areas where they are moving can be predicted.

a)

the plum - pudding model

b)

the Bohr Model

c)

the planetary model

d)

the electron cloud model

97.

The most reactive element in period 4 is ____.

a)

Krypton (#36)

b)

Bromine (#35)

c)

Calcium (#20)

d)

Potassium (#19)

98.

If an isotope of Carbon, Carbon - 12, has 6 protons. How many protons does Carbon - 14 have?

a)

7

b)

8

c)

13

d)

6

99.

How many elements are found in the chemical formula shown below?

a)
2
b)
3
c)
4
d)
10
100.

What is the average atomic mass of Tin (#50)?

a)

119

b)

50

c)

69

d)

169

101.

Carbon has 6 protons, 6 neutrons and 6 electrons. What would you call a Carbon atom with 6 protons, 8 neutrons and 6 electrons?

a)

an ion

b)

an isotope

102.

Which of the following sub atomic particle is the smallest and least massive?

a)
neutron
b)
electron
c)
proton
103.

A vertical column on the periodic table is called a/an _____.

a)
atomic number
b)
period
c)
group
d)

energy level

104.

A horizontal row on the periodic table is called a/an _____.

a)
atomic number
b)
period
c)
group
d)
family
105.

Fluorine (#9) has ____ valence electrons.

a)

7

b)

9

c)

17

d)

1

106.

Barium (#56) has ____ valence electrons.

a)

6

b)

2

c)

56

d)

1

107.

How many protons, neutrons, and electrons does a neutral atom of Chlorine (#17) have?

a)

17, 18, 17

b)

17, 35, 17

c)

17, 52, 35

d)

35, 17, 18

108.

What is the atomic number of Calcium (Ca)?

a)

40

b)

20

c)

60

d)

4

109.

Which group (or family) from the periodic table have a full outer electron shell and are, therefore, unreactive with other elements on the periodic table?

a)

Group 18

Noble gases

b)

Group 1

Alkali Metals

c)

Group 17

Halogens

d)

Group 2

Alkaline Earth Metal

110.

Which group (or family) from the periodic table have a 1 electron in their outermost energy level and are, therefore, highly reactive with some other elements on the periodic table?

a)

Group 18

Noble gases

b)

Group 1

Alkali Metals

c)

Group 17

Halogens

d)

Group 2

Alkaline Earth Metal

111.

Which group (or family) from the periodic table have a 7 electrons in their outermost energy level and are, therefore, highly reactive with some other elements on the periodic table?

a)

Group 18

Noble gases

b)

Group 1

Alkali Metals

c)

Group 17

Halogens

d)

Group 2

Alkaline Earth Metal

112.

How many energy levels would a neutral atom of Calcium (Ca #20) have?

a)

four

b)

two

c)

forty

d)

twenty

113.

What is the ratio of Carbon (C) to Hydrogen (H)i in C3H6O.

a)

6:3

b)

2:1

c)

1:2

d)

3:1

114.

Which one of the following categories would best identify U, Uranium (#92)?

a)
transition metal
b)
inner transition metal
c)
nonmetal
d)
metalloid
115.

Which one of the following categories would best identify I, Iodine (#53)?

a)
transition metal
b)
inner transition metal
c)
nonmetal
d)
metalloid
116.

Which one of the following categories would best identify Si, Silicon (#14)?

a)
transition metal
b)
inner transition metal
c)
nonmetal
d)
metalloid
117.

Which one of the following categories would best identify Cr, Chromium (#24)?

a)

nonmetal

b)
inner transition metal
c)

transition metal

d)
metalloid
118.

What do the dots around the symbol for Boron represent?

a)

The number of electrons in the outer most energy level

b)

the number of protons in the nucleus

c)

the number of neutrons in the nucleus

d)

the total number of electrons in the atom

119.

What are ways in which scientists DO NOT test their ideas.

a)

writing articles for scientific journals

b)

performing experiments

c)

sitting around developing theories

120.

How does a scientific law differ from a scientific theory?

a)

a theory in science is just an educated guess. A law in science has been proven to be true

b)

a scientifc law states what will happen in certain conditions. A theory describes how certain things happen

121.

How does the density of wood compare to the density of liquid water? And what does this mean?

a)

They are both so close that it really doesn't mean anything.

b)

Liquid water is more dense than wood. Wood will float in water.

c)

Liquid water is more dense than wood. Wood will sink in water.

d)

Liquid water is less dense than wood. Wood will sink in water.

e)

You can't really tell from this chart.

122.

A 113 -gram sample of an unknown material has a volume equal to 10 cm3. Based on its density and using this chart, the material could be ______.

a)

aluminum

b)

steel

c)

lead

d)

There isn't enough information to tell.

123.

What do we call a "testable explanation" in science?

a)

review

b)

theory

c)

hypothesis

d)

scientific law

124.

Mr. McKee’s class wanted to find out whether their plants would grow better with fertilizer or without. They would do a(n) _______ to attempt to answer this question.

a)

observational study

b)

controlled experiment

125.

‘Tested variable’ is another term for ________ variable

a)

flexible

b)

controlled

c)

independent

d)

dependent

126.

Match the type of observation with the statement: The density of the substance is 1.4 g/cm3

a)

quantitative

b)

qualitative

127.

Match the type of observation with the statement: The liquid smelled like rotten eggs.

a)

quantitative

b)

qualitative

128.

Match the type of observation with the statement: The distance the object rolled was 152 cm.

a)

quantitative

b)

qualitative

129.

Match the type of observation with the statement: The distance the object rolled was 152 cm.

a)

quantitative

b)

qualitative

130.
*Match the type of evidence with the statement: The liquid in the cup is 15°C.
a)

direct evidence

b)

indirect evidence

131.
*Match the type of evidence with the statement: Glossopteris and mesosaurus fossils found on the African and South American continents supported the theory that the continents have moved over time.
a)
direct evidence
b)
indirect evidence
132.
*Match the type of evidence with the statement: Evidence gathered after the occurrence
a)
direct evidence
b)
indirect evidence
133.
*Match the type of evidence with the statement: Seismic wave behavior indicates the Earth’s inner core is solid.
a)
direct evidence
b)
indirect evidence
134.

In our photosynthesis lab with the Elodea plant in the solution of bromothymol blue. Placing 100 ml of solution in the baggie is an an example of

a)

independent variable

b)

dependent variable

c)

controlled variable

d)

control group

135.

In our photosynthesis lab with the Elodea plant in the solution of bromothymol blue. The location of the bag in the light vs the dark is an example of

a)

independent variable

b)

dependent variable

c)

controlled variable

d)

control group

136.

In our photosynthesis lab with the Elodea plant in the solution of bromothymol blue. The color of the solution after 24 hours is an example of

a)

independent variable

b)

dependent variable

c)

controlled variable

d)

control group

137.

When conducting a controlled an experiment, a group of subjects that gets placed "under normal conditions" is called the _________

a)

independent variable

b)

dependent variable

c)

controlled variable

d)

control group

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