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Chapter 1 & 3 Quizzizz

Total questions: 201

Worksheet time: 2hrs 9mins

Name
Class
Date
1.

____________ is the branch of chemistry that would study enzymes used in the digestion of food.

a)

Inorganic Chemistry

b)

Biochemistry

c)

Physical Chemistry

2.

____________ is the branch of chemistry that would measure the amount of energy an atom absorbs in nuclear reaction.

a)

Physical Chemistry

b)

Organic Chemistry

c)

Biochemistry

3.

____________ is the branch of chemistry that would study and develop new materials to improve existing products or make new ones that in general do no contain carbon.

a)

Organic Chemistry

b)

Inorganic Chemistry

c)

Biochemistry

4.

The study of chemicals that, in general, do not contain carbon.

a)

Biochemistry

b)

Inorganic chemistry

c)

Organic chemistry

5.

Identifies an unknown through by determining its composition.

a)

Analytical Chemistry

b)

Physical Chemistry

c)

Organic Chemistry

6.

studying the process of photosynthesis in plants

a)

biochemistry

b)

inorganic

c)

analytical

7.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
8.
The amount of space something takes up
a)
density
b)
volume
c)
mass
d)
matter
9.

Which among the following is a NOT matter?

a)

Air

b)

Gold

c)

Water

d)

Heat

10.

Chemistry is the study of the _____________ and behaviors of ______________.

a)

size, mass

b)

energy, matter

c)

properties, matter

d)

characteristics, life

11.

Law of definite proportions means

a)

states that the mass of reactants in a reaction equals the mass of the products

b)

Is created by John Dalton

c)

states that two or more different compounds are composed of the same two elements, the ratio of the masses of the second element (which combines with a given mass of the first element) is always a ration of small whole numbers.

d)

states that two samples of a given compound are made of the same elements in exactly the same proportions by mass regardless of the sizes or sources of the samples.

12.

Law of multiple proportions means

a)

states that the mass of reactants in a reaction equals the mass of the products

b)

Is created by John Dalton

c)

states that two or more different compounds are composed of the same two elements, the ratio of the masses of the second element (which combines with a given mass of the first element) is always a ration of small whole numbers.

d)

states that two samples of a given compound are made of the same elements in exactly the same proportions by mass regardless of the sizes or sources of the samples.

13.

Law of conservation of mass means

a)

states that the mass of reactants in a reaction equals the mass of the products

b)

Is created by John Dalton

c)

states that two or more different compounds are composed of the same two elements, the ratio of the masses of the second element (which combines with a given mass of the first element) is always a ration of small whole numbers.

d)

states that two samples of a given compound are made of the same elements in exactly the same proportions by mass regardless of the sizes or sources of the samples.

14.

Atoms of the same element have different numbers.

a)

True

b)

False

15.

Which digit shows the degree of accuracy of this scale?

a)

1

b)

2

c)

6

d)

4

16.

How much longer is the key than the paper clip?

(Hint: do we have to guess at the tenths place or the hundredths place with this ruler?)

a)

2 cm

b)

1.68 cm

c)

10 cm

d)

1.7 cm

17.

How long is the pencil?

a)

16 cm

b)

15.7±0.1 cm

c)

15 cm

d)

15.7 cm

18.

If Sandra was 37.75 cm tall and Brian was 25 cm tall. How tall would they be together?

a)

60 cm

b)

62.8 cm

c)

63 cm

d)

62.75 cm

19.

The lemonade in this glass is what type of mixture?

a)

Heterogeneous

b)

Homogeneous

20.

What type of mixture is shown?

a)

Homogeneous

b)

Heterogeneous

21.

What type of substance is shown?

a)

compound

b)

heterogeneous mixture

c)

homogeneous mixture

d)

element

22.

What type of material is pictured?

a)

Element

b)

Compound

c)

Homogeneous mixture

d)

Heterogeneous mixture

23.

What type of material is pictured?

a)

Element

b)

Compound

c)

Heterogeneous mixture

d)

Homogeneous mixture

24.

Classify these rock samples.

a)

Element

b)

Compound

c)

Homogeneous mixture

d)

Heterogeneous mixture

25.

If you love carbon, which branch of chemistry should you plan on studying?

a)

physical

b)

inorganic

c)

analytical

d)

organic

26.

Which of the following is not matter?

a)

Air

b)

Skin

c)

Energy

d)

Water

27.

Which is the best definition of chemistry?

a)

The study of the contents of matter and its chemical properties.

b)

The study of chemical reactions in elements.

c)

The study of the contents of molecules.

d)

The study of ions and atoms.

28.
Which of the following statements is incorrect?
a)
Matter may be solid, liquid or gas. 
b)
Elements can be decomposed into simpler substances by ordinary chemical reactions. 
c)
A compound is any substance composed of atoms of two or more different elements that are chemically combined
d)
 A molecule is the combination of two or more atoms held together by covalent bonds. 
29.
Which of the following is not a compound?
a)
NaCl
b)
C6H1206
c)
H20
d)
o2
30.

Chemistry is a branch of science to study

(I) Interactions between matter

(II) Structure of matter

(III) Composition of matter

(IV) Properties of matter

a)

I, II, and III

b)

I, II, and IV

c)

II, III, and IV

d)

I, II, III, and IV

31.

The branch of chemistry which deals with the study of carbon compounds is ?

a)

Biochemistry

b)

Organic Chemistry

c)

Inorganic Chemistry

d)

Polymer Chemistry

e)

Physical Chemistry

32.

If you're determining the energy transfer when water boils what branch of chemistry are you working in?

a)

Analytical chemistry

b)

Physical chemistry

c)

Organic chemistry

d)

Biochemistry

33.

In the ________ world, objects are large enough to see with the unaided eyes and in the _______ world, magnification is required to see objects.

a)

microscopic; macroscopic

b)

macroscopic; microscopic

c)

macroscopic; large

d)

small; microscopic

34.

Chemists play an essential role in finding ways to conserve, produce, and store what?

a)

Matter

b)

Energy

c)

Plants

d)

Fossil fuel

35.

A well-tested explanation for a broad set of observations

a)

scientific law

b)

theory

c)

observation

d)

hypothesis

36.

____________ is the branch of chemistry that would analyze the composition of medicines and research how it reacts in the body. (Select all that apply)

a)

Analytical Chemistry

b)

Organic Chemistry

c)

Biochemistry

d)

Inorganic Chemistry

37.

The part of the experiment that remains unaffected by the independent variable. Used to compare dependent variable to.

a)

constants

b)

control group

c)

independent

d)

dependent

38.

describes many observations but does not explain them

a)

scientific method

b)

hypothesis

c)

thetheory

d)

scientific law

39.

information obtained directly by using your senses

a)

observation

b)

experiment

c)

hypothesis

d)

pure chemistry

40.

a well tested explanation for a broad set of observations

a)

scientific law

b)

theory

c)

hypothesis

d)

scientific method

41.

field of study concerned with the chemistry of living organisms

a)

organic chemistry

b)

biotechnology

c)

biochemistry

d)

physical chemistry

42.

the means by which a society provides its members with those things needed and desired, the application of science to make life better

a)

technology

b)

pure chemistry

c)

organic chemistry

d)

scientific method

43.

studying the composition of matter, what something is made of

a)

hypothesis

b)

analytical chemistry

c)

theoretical chemistry

d)

technology

44.

variable that the scientist changes during an experiment

a)

manipulated or independent variable

b)

responding variable

c)

dependent variable

d)

control

45.

a proposed explanation for what is observed, or proposed solution to a problem

a)

theory

b)

scientific method

c)

hypothesis

d)

scientific law

46.

a logical approach to the solution of scientific problems

a)

hypothesis

b)

scientific law

c)

scientific method

d)

theory

47.

a proposed explanation for what is observed, or proposed solution to a problem

a)

theory

b)

scientific method

c)

hypothesis

d)

scientific law

48.

Which of the following are qualitative observations?

a)

The ball is round.

b)

The ball has a mass of 5.2 grams.

c)

My coffee is hot.

d)

My coffee is 85 degrees.

49.

Which of the following are extensive properties of matter?

a)

volume

b)

density

c)

mass

d)

energy

e)

luster

50.

Which of the following are intensive properties of matter?

a)

density

b)

luster

c)

volume

d)

mass

e)

conductivity

51.

Name the figure

a)

Spirit Lamp

b)

Tripod Stand

c)

Bunsen Burner

d)

None of These

52.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
53.

Chemistry is the study of the _____________ and behaviors of ______________.

a)

size, mass

b)

energy, matter

c)

properties, matter

d)

characteristics, life

54.
This is the last step in the scientific method
a)
Draw a conclusion
b)
Record your data as results
c)
Share what you have learned with others
d)
Collaborate with others
55.
Which of the following is an observation of the picture?
a)
The person is wearing a T-shirt
b)
It is a sunny day
c)
The person is going to a birthday party
d)
The gift is a DVD player
56.
Water is an element?
a)
true
b)
false
57.
What is the study of the composition, structure, and properties of MATTER?
a)
Chemistry
b)
Biology
c)
Geology
d)
Physics
58.
Anything that takes up space and has mass is known as _______________.
a)
Matter
b)
Molecules
c)
Compounds
d)
Stuff
59.
Element or compound?
O2
a)
Element
b)
Compound
60.
Element or compound?
H2O
a)
element
b)
compound
61.

Three states of matter

a)

A. Density, Volume and weight

b)

B. Solid, Liquid and Gas

c)

C. Water, metal and gases

d)

D. all of the above

62.

Which of the following is a list of compound

a)

A. Water, Carbon dioxide,Benzene

b)

B. Gold , Silver, Brass

c)

C. Brick, Sand, Concrete

d)

D. Hydrogen, Nitrogen, Oxygen

63.

The number 10.00 has how many significant figures?

a)

A. 1

b)

B. 2

c)

C. 3

d)

D. 4

e)

E. 5

64.

The chemical symbol for manganese is

a)

A. Mn

b)

B. Mo

c)

C. Ma

d)

D. Mg

65.

Another name given to chemistry is... because other natural sciences like physics and biology come from it.

a)

central matter

b)

central topic

c)

centra science

66.
These are found on the Periodic Table.
a)
Compounds
b)
Elements
c)
Mixtures
67.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
68.
These are found on the Periodic Table.
a)
Compounds
b)
Elements
c)
Mixtures
69.

the basic structural unit of matter

a)

atom

b)

matter

c)

element

d)

nucleus

70.

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

a)

family

b)

period

c)

row

d)

isotope

71.

a row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

72.

Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

a)

numbers, rows

b)

masses, rows

c)

masses, column

d)

numbers, column

73.

A grouping of elements based on similar chemical properties, arranged by columns in the periodic table; also known as a group

a)

family

b)

period

c)

row

d)

isotope

74.

A row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

75.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

76.
How many variables should be tested at a time?
a)
Three
b)
Zero
c)
Two
d)
One
77.
What is the first step in the scientific method?
a)
Make an observation --> Question
b)
Design and conduct an experiment
c)
Make an hypothesis
d)
Share your results
78.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 
a)
experimental group
b)
control group
c)
data
d)
variables
79.
Which type of data involves numbers that are obtained by counting or measuring?
a)
quantitative
b)
qualitative
80.
Which type of data involves descriptions that cannot be counted or measured?
a)
qualitative
b)
quantitative
81.
The summary at the end of an experiment that explains the results is... 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
82.
"The plant is pretty"
This observation is...
a)
Subjective
b)
Objective
83.
"The coin weighs 2 grams"
This observation is...
a)
Subjective
b)
Objective
84.
True or False: Your hypothesis can never be wrong.
a)
True
b)
False
85.
Why do scientists use the scientific method?
a)
To make sure they get credit for their discoveries.
b)
To make sure their results are valid and can be performed by other scientists.
c)
So that other scientist don't get mad at them
86.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
87.
What are the materials in your scientific method? 
a)
your favorite markers and lucky eraser
b)
everything you will need to complete your experiment
c)
a hypothesis
d)
step by step directions to complete an experiment
88.
The independent variable is the ONE thing you _____.
a)
change on purpose
b)
control or keep constant
c)
measure
89.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. What variables should be kept constant/controlled? 
a)
type of plant, flower pot,  soil, and amount of sunlight
b)
water, apple juice, milk
c)
only the amount of sunlight
d)
type of plant only
90.
In a controlled experiment, how many variables can be worked with at a time? 
a)
one
b)
none
c)
two or more
d)
how ever many makes sense.
91.
A possible explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
92.

Mrs. Lewis sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.

a)

height of the ramp

b)

distance traveled by the ball

c)

mass of the ball

d)

weight of the ball

93.

The part of the experiment that remains unaffected by the independent variable. Used to compare dependent variable to.

a)

constants

b)

control group

c)

independent

d)

dependent

94.

Color is what type of property?

a)

Physical

b)

Chemical

95.

Reactivity is what type of property?

a)

Physical

b)

Chemical

96.

What is a sign of a physical change?

a)

Bubbles forming

b)

Color changing

c)

Stretching

d)

Producing heat

97.

What is a sign of a chemical change?

a)

Stretching

b)

Tearing

c)

Compressing

d)

Bubbles

98.

Which of the following changes is a physical change of matter?

a)

water evaporating

b)

paper burning

c)

a nail rusting

d)

a silver spoon tarnishing

99.

You mixed two liquids and a precipitate formed, what kind of change occured?

a)

Physical

b)

Chemical

100.

Which of these observations would likely be an indication of a chemical change?

a)

A change in odor when two substances are mixed

b)

A change in temperature when a hot substance is left standing in air

c)

A change in volume as a substance is heated

d)

The disappearance of a liquid as it boils

101.

Signs of a physical change:

a)

Compress

b)

Shatter

c)

Tear

d)

Precipitate

102.

Signs of a chemical change:

a)

Precipitate

b)

Light

c)

Heat

d)

Shatter

103.

Acid Rain

a)

Physical Change

b)

Chemical Change

104.

Moldy Bread

a)

Physical Change

b)

Chemical Change

105.
The density of pyrite is 5g/cm3 . This is an example of 
a)
physical intensive property
b)
physical extensive property
c)
chemical change
d)
chemical property
106.
Wood burning is an example of _______
a)
physical intensive property
b)
physical extensive property
c)
chemical change
d)
Physical change
107.
Crumpling paper is an example of 
a)
physical change
b)
chemical change
c)
physical property
d)
chemical property
108.
Physical properties of a substance include _________
a)
color and odor
b)
melting and boiling points
c)
density 
d)
all of the choices are correct
109.
The rose is red. This is an example of a 
a)
physical extensive property
b)
Chemical property
c)
physical intensive property
d)
physical change
110.
All of these are examples of chemical properties except...
a)
Flammability
b)
Combusting
c)
Fizzing
d)
Boiling Point
111.
Which of the following is a Physical Property?
a)
Color
b)
Burning
c)
Corroding 
d)
Rusting
112.
The mass of a lead cube is 64 grams. This is an example of 
a)
physical intensive property
b)
physical extensive property
c)
chemical change
d)
physical change
113.
Water and methane are examples of ...
a)
Elements
b)
Solutions
c)
Compounds
d)
Mixtures
114.
Which of these is not an element?
a)
Iron
b)
Gold
c)
Silver
d)
Iron Oxide
115.
What is a mixture that has no visible differences in composition?
a)
Element
b)
Compound
c)
Heterogeneous Mixture
d)
Homogeneous Mixture
116.
Flammability is a
a)
Chemical Property
b)
Physical Property
117.
Which property is extensive?
a)
density
b)
mass
c)
color
d)
none of the above
118.
Which state of matter has particles that are tightly packed?
a)
liquid
b)
gas
c)
solid
119.
A balloon is filled with gas. Inside the balloon the gas particles .......
a)
Are avoiding each other
b)
Are moving slowly
c)
Are moving very quickly
d)
Are not moving
120.

A substance made of two or more elements that cannot be separated by physical means is called a:

a)

compound.

b)

homogeneous mixture.

c)

heterogeneous mixture.

d)

multi-element.

121.

Which of the following is true of a heterogeneous mixture?

a)

It is not possible to separate the various parts of the mixture.

b)

Taking one sample will enable you to determine what it is made of.

c)

Different samples may not be exactly alike.

d)

The density is the same throughout the entire mixture.

122.

The name for a mixture in which all samples are made up of the same proportions of matter is:

a)

pure substance

b)

homogeneous

c)

heterogeneous

d)

homologous

123.

The phase of matter represented in a flash of lightning is:

a)

plasma.

b)

solid.

c)

liquid.

d)

gas.

124.

All of the following phases of matter may flow EXCEPT:

a)

plasma.

b)

solid.

c)

liquid.

d)

gas.

125.

List the phases of water in order, from the phase with the slowest molecular movement to the phase with the fastest molecular movement.

a)

Gas-Liquid-Solid

b)

Liquid-Solid-Gas

c)

Solid-Liquid-Gas

d)

Gas-Solid-Liquid

126.

The picture shows an example of

a)

gas

b)

plasma

c)

liquid

d)

solid

127.

This picture shows an example of

a)

gas

b)

plasma

c)

liquid

d)

solid

128.

The picture shows an example of

a)

gas

b)

plasma

c)

liquid

d)

solid

129.

Which is the most compressible state of matter?

a)

Solid

b)

Liquid

c)

Gas

130.

Which of the following is a chemical change?

a)

Color Change

b)

Melting

c)

Boiling (vaporization)

d)

Dissolving in water

131.

A combination of two or more pure substances in which each pure substance retains its individual chemical properties is a(n)

a)

atom

b)

element

c)

mixture

d)

salad

132.

Which is a mixture that does not blend smoothly throughout and in which the individual substances remain distinct?

a)

homogeneous mixture

b)

compound

c)

alloy

d)

heterogeneous mixture

133.

All homogeneous mixtures can also be called ______.

a)

solutions

b)

alloys

c)

suspensions

d)

colloids

134.

Matter that is made up of two or more substances is a(n)

a)

ice cream sandwich

b)

mixture

c)

compound

d)

element

135.

A mixture that does not blend smoothly throughout and in which the individual substances remain distinct is called a(n) ________________________ mixture.

a)

heterogeneous

b)

homogeneous

136.

A solid-solid solution system made up of two or more metals is called a(n)

a)

aluminum

b)

alloy

c)

soup

d)

composition

137.

A mixture that has constant composition throughout and always has a single phase is a

a)

heterogeneous

b)

homogeneous

c)

milk

d)

steel

138.

Select all that apply

Which techniques are used to separate mixtures?

a)

mass spectrometry

b)

fission

c)

distillation

d)

filtration

e)

chromatography

139.

A separation technique that uses a porous barrier to separate a solid from a liquid is called

a)

distillation

b)

sublimation

c)

filtration

140.

A physical separation technique that is based on differences in the boiling points of the substances involved is called

a)

filtration

b)

distillation

c)

chromatography

141.

Which is a technique that separates the components of a mixture dissolved in a gas or a liquid based on the ability of each component to travel or to be drawn across the surface of a fixed substrate?

a)

distillation

b)

filtration

c)

chromatography

d)

sublimation

142.

A separation technique that results in the formation of pure solid particles of a substance from a solution containing the dissolved substance is called

a)

chromatography

b)

crystallization

c)

sublimation

143.

Which is a separation technique that results in the formation of pure solid particles of a substance from a solution containing the dissolved substance?

a)

sublimation

b)

crystallization

c)

chromatography

d)

filtration

144.
Lemonade is a special mixture called a 
a)
substance
b)
solution
c)
plasma
d)
ingredient
145.

The most ideal way to separate this mixture of sand and water is to -

a)

use a hot plate

b)

pour the mix through a strainer

c)

shake the mixture rapidly

d)

pour the mix through a coffee filter

146.

A mixture that is not uniform throughout is ______________________ and a mixture that is uniform throughout is _________________________.

a)

extensive / intensive

b)

intensive / extensive

c)

homogeneous / heterogeneous

d)

heterogeneous / homogeneous

147.

Dyes in water soluble markers may be separated by means of..

a)

crystallization

b)

sublimation

c)

chromatography

d)

sedimentation

148.

Name the separation technique shown in the diagram.

a)

evaporation

b)

distillation

c)

filtration

149.

In a coffee machine, the ground coffee is separated from the coffee solution by using..

a)

sand paper

b)

filter paper

c)

toilet paper

d)

tissue paper

150.
Contains only one kind of atom.
a)
Element
b)
Compund
c)
Mixture
151.
Contains two or more atoms combined
a)
Elements
b)
Compounds
c)
Mixtures
152.
The air is a _________. 
a)
element 
b)
mixture 
c)
compound 
d)
energy 
153.

Examples are diamonds (C) and Uranium (U)

a)

elements

b)

mixtures

c)

compounds

154.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
155.

Which of the following is matched incorrectly.

a)

Milk: compound

b)

Steel alloy: homogeneous mixture

c)

Glucose (C6H12O6): compound

d)

Cookies & Cream: heterogenous mixture

156.

Kool-aid is a example of a(n)

a)

element

b)

compound

c)

mixture

157.

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

a)

element

b)

compound

c)

mixture

158.

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

a)

element

b)

compound

c)

mixture

159.
Mixtures are __________ combined.
a)
Chemically
b)
Physically
c)
Magically
d)
Spontaneously
160.
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
161.
Cl-Cl
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
162.
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
163.
kool-aid with ice
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
164.
kool-aid (no ice)
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
165.
no pulp
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
166.
sulfur
a)
element
b)
compound
c)
homogeneous mixture
d)
heterogeneous mixture
167.
A physical change produces new substances
a)
FALSE 
b)
TRUE
168.
The law of conservation of mass states that the total mass of  the reactants and the products before and after in a chemical reaction will not be the same
a)
TRUE
b)
FALSE
169.

Which set of properties, intensive or extensive, are based on the size of a sample?

a)

intensive

b)

extensive

170.

What kind of physical property is this? Color

a)

intensive

b)

extensive

171.

What kind of physical property is this? Temperature

a)

intensive

b)

extensive

172.

What kind of physical property is this? Energy

a)

intensive

b)

extensive

173.

What kind of physical property is this? Number of Atoms

a)

intensive

b)

extensive

174.

What kind of physical property is this? Odor

a)

intensive

b)

extensive

175.

What kind of physical property is this? Boiling Point

a)

intensive

b)

extensive

176.

What kind of physical property is this? Mass

a)

intensive

b)

extensive

177.

What kind of physical property is this? Melting Point

a)

intensive

b)

extensive

178.
What was Dmitri Mendeleev's greatest contribution to the history of the periodic table?
a)
He arranged all of the known elements by their atomic number
b)
He realised that there was a pattern of reactivity which repeated every 8 elements
c)
He predicted the existence (and properties) of new elements
d)
He identified the "law of triads" which became the groups
179.
Who arranged the first periodic table.
a)
Mosely
b)
Einstein
c)
Mendeleev
d)
Bohr
180.
Why did scientists need/want to organize the elements?
a)
Scientists like things organized
b)
make it easier to understand the elements
c)
have one list of the known elements.
d)
none of the above
181.
A vertical column is called...
a)
group
b)
tower
c)
period
d)
crew
182.

who discovered the first scientific and systematic periodic table

a)

Henry Mosley

b)

Dmitri Mendeleev

c)

John Dalton

d)

sir Isaac Newton

183.
Which describes a base?
a)
Turns blue litmus red
b)
Turns red litmus blue
c)
pH of 7
d)
pH of 3
184.
Which is an acid?
a)
Turns blue litmus red
b)
Turns red litmus blue
c)
Has a pH of 11
d)
Has a pH of 7
185.
What color does acid turn litmus paper?
a)
It turns litmus paper purple.
b)
It turns red litmus paper blue.
c)
It turns blue litmus paper blue.
d)
It turns blue litmus paper red.
186.
What color does bases turn litmus paper?
a)
It turns litmus paper purple.
b)
It turns blue litmus paper red.
c)
It turns red litmus paper blue.
d)
It turns red litmus paper re
187.

Magnesium burns in air with a bright white light to form a white powder.

a)

Macroscopic

b)

Microscopic

c)

Model

188.

Magnesium is oxidised by oxygen to form magnesium oxide.

a)

Macroscopic

b)

Microscopic

c)

Model

189.

Ethanoic acid forms hydrogen bonds with water.

a)

Macroscopic

b)

Microscopic

c)

Model

190.

Blue litmus paper turns red when added to an ethanoic acid solution.

a)

Macroscopic

b)

Microscopic

c)

Model

191.

____________ is anything that has mass and takes up space.

a)

Matter

b)

Mass

c)

Measurements

d)

Metric

192.

Is air matter?

a)

Yes

b)

No

c)

Maybe

d)

Sometimes

193.

Scientists measure matter in terms of:

a)

its gravitational pull

b)

matter

c)

mass

d)

weight

194.

Which of the following means that you need a microscope to see it?

a)

Macroscopic

b)

Microscopic

c)

Atomic

d)

Submicroscopic

195.

Atoms are on the _____________ level.

a)

Macroscopic

b)

Microscopic

c)

Submicroscopic

d)

Micrascopic

196.

A ______________ is a visual representation of data.

a)

Form

b)

Atom

c)

Atomic mass

d)

Model

197.

__________ research is done to solve a specific problem.

a)

Conceptual

b)

Pure

c)

Applied

d)

Honest

198.

___________ research is done to gain knowledge for the sake of itself.

a)

Honest

b)

Pure

c)

Applied

d)

Conceptual

199.

Chemistry seeks to explain ________________ events that lead to macroscopic observations.

a)

expected

b)

unexpected

c)

submacroscopic

d)

microscopic

200.

What is the ratio of the mass of oxygen in hydrogen peroxide (H2O2) to the mass of water (H2O)?

a)

1 : 1

b)

1 : 2

c)

2 : 2

d)

2 : 1

201.

Find the mean of the data to 1 d.p.

a)

201

b)

28.7

c)

28.5

d)

28.3

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