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Chapter 2- Chemistry

Total questions: 76

Worksheet time: 44mins

Name
Class
Date
1.

Anything which has mass and occupy space is called as ________

a)

Mass

b)

Matter

c)

Nothing

d)

Anything

2.

What are the 3 states of matter?

a)

Solids, Liquids and gas

b)

Solids, paper and atoms

c)

Liquids, solids, hot

d)

hot, cold, wet

3.
Suppose an astronaut were to visit a planet where the gravity is half that of Earth.  His MASS on that planet would be ______________.
a)
half his Earth mass
b)
the same as his Earth mass
c)
twice his Earth mass
d)
zero
4.

______ is the gravitational force exerted on an object

a)

Mass

b)

Gravity

c)

Force

d)

Weight

5.

What is Energy?

a)

The ability to do anything

b)

The ability to cause change or do work

c)

The investigation of nature

d)

A fact of life

6.

What is an example of kinetic energy?

a)

An apple in a tree

b)

A bouncy ball on the table

c)

A car driving on the highway

d)

A stretched out rubber band

7.

What is an example of potential energy?

a)

A bowling ball rolling down a lane

b)

A car parked in a lot

c)

An apple falling from a tree

d)

Sunlight heating up the atmosphere

8.

A battery is an example of which type of potential energy?

a)

Electrical

b)

Mechanical

c)

Thermal

d)

Chemical

9.

What four elements make up 96% of the human body

a)

Carbon, Hydrogen, Oxygen, Sulfur

b)

Carbon, Hydrogen, Oxygen, Nitrogen

c)

Carbon, Hydrogen, Nitrogen, Silicon

d)

Carbon, Hydrogen, Oxygen, Phosphorous

10.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

11.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
12.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
13.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
14.

Isotopes of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

15.

An isotope with an unstable nucleus

a)

Background radiation

b)

Critical mass

c)

Radioisotope

16.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
17.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
18.

How would H2O be classified? Check all that apply.

a)

Atom

b)

Molecule

c)

Compound

19.

How would O2 be qualified. Check all answers that apply.

a)

Atom

b)

Molecule

c)

Compound

20.

In which of the following do particles sit at the bottom

a)

Solution

b)

Suspension

c)

None of the above

d)

Colloid

21.

How are suspensions and colloids different?

a)

Suspensions settle out and colloids do not settle.

b)

Colloids settle out and suspensions do not settle.

c)

Suspensions dissolve and colloids do not.

d)

Colloids dissolve and suspensions do not.

22.
Sugar water is a 
a)
solution
b)
suspension
c)
colloid
23.

In a ______________, one substance is dissolved in another substance.

a)

solution

b)

suspension

c)

colloid

24.
If a spoonful of sugar is mixed in a glass of water, what is the water called? 
a)
solute
b)
solution
c)
solvent
d)
element 
25.

An ionic bond is formed when

a)

Valence electrons are shared.

b)

Valence electrons surround the cations.

c)

Valence electrons are transferred between atoms.

d)

Valence electrons are completely transferred between two metals.

26.

What is a valence electron?

a)

an electron that is found in the outermost shell of an atom

b)

an electron found in the innermost shell of an atom

c)

an electron found in the middle shell

d)

an electon found in the nucleus

27.
What are ionic bonds?
a)
Valence electrons transferred between atoms
b)
Inner most electrons transferred between atoms
c)
Sharing electrons
28.
What bond involves the sharing of electrons?
a)
Ionic
b)
Transitive
c)
Covalent
29.

Ice has less density as compared to water due to ___________ bonds.

a)

ionic

b)

hydrogen

c)

covalent

d)

metallic

30.
What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force
31.
What type of bond is shown in this image?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force
32.

Identify the type of reaction that involves the synthesis of larger molecules from smaller simpler molecules

a)

Metabolism

b)

Anabolic reaction

c)

Digestion

d)

Catabolic reaction

33.

Digestion would be what type of reaction?

a)

Catabolic reaction

b)

Metabolic reaction

c)

Anabolic reaction

d)

Synthesis

34.

Oxidation is ________ of electron

a)

Gain

b)

Loss

c)

Share

d)

Transfer

35.

Reduction is the ________ of electrons

a)

Transfer

b)

Share

c)

Loss

d)

Gain

36.

An _______ reaction is when more energy is released than is absorbed. This energy can be in the form of light, heat, electricity, etc.

a)

endothermic

b)

endergonic

c)

exothermic

d)

exergonic

37.

In a _____ reaction, the products have more energy than the reactants.

a)

exergonic

b)

endergonic

38.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
39.

What property of water allows for water to act as a temperature regulator for the world?

a)

Cohesive Behavior

b)

Expansion Upon Freezing

c)

High Specific Heat

d)

Universal Solvent

40.

What characteristic is shown in the image?

a)

Polarity

b)

Hydrogen Bonds

c)

Cohesion

d)

Adhesion

41.

What is cohesion?

a)

The ability of a molecule to "stick" to itself

b)

The ability of a molecule to "stick" to other molecules

c)

Large amounts of energy are required to change the temperature of a substance

d)

A well-organized and efficient team

42.

The fact that water can stick to other substances is called:

a)

pH

b)

Adhesion

c)

Cohesion

d)

Insulation

43.

The ability of water molecules to stick to each other, creating surface tension is called:

a)

Cohesion

b)

Adhesion

c)

Insulation

d)

pH

44.

Acids have a pH of _______________.

a)

below 7

b)

above 7

c)

exactly 7

45.

Bases have a pH of _______________.

a)

below 7

b)

above 7

c)

exactly 7

46.

Neutral solutions have a pH of _______________.

a)

below 7

b)

above 7

c)

exactly 7

47.
Buffer is defined as
a)
ability to resist pH change
b)
ability to prevent pH from decreasing
c)
ability to resist a pH increase
d)
ability to resist pH change when small amount of acid added
48.

What is the monomer of carbohydrates

a)

disaccharides

b)

monosaccharides

c)

amino acids

d)

fatty acids

49.

Which of the following is NOT a monosaccharide?

a)

starch

b)

fructose

c)

glucose

d)

galactose

50.

Which polysaccharide is used by plants to store glucose?

a)

glycogen

b)

cellulose

c)

starch

d)

chitin

51.

What is the polysaccharide used by animals to store glucose?

a)

glycogen

b)

fructose

c)

starch

d)

cellulose

52.

Monomers of Lipids include

a)

amino acids

b)

monosaccharides

c)

nucleotides

d)

glycerol and fatty acids

53.

Which of these are examples of Lipids?

a)

simple sugars

b)

complex carbohydrates

c)

fats, oils, & waxes

d)

hair, skin, & nails

54.

______- Have no double bonds between the carbons in the chain.

a)

Saturated Fats

b)

Unsturated Fats

c)

Trans Fats

d)

Polyunsaturated Fats

55.

_________ Have one or more double bonded carbons in the chain.

a)

Unsaturated Fats

b)

Saturated Fats

c)

Trans Fats

d)

Polyunsaturated Fats

56.

Proteins are made of many ____ bonded together.

a)

amino acids

b)

enzymes

c)

polypeptides

57.

All amino acids have the same basic structure. Which part of the amino acid makes each each one unique?

a)

amino group

b)

carboxyl group

c)

R-group (side chain)

58.

The protein structure that results from hydrogen bonds forming beta pleated sheets and alpha helix is:

a)

primary structure

b)

secondary structure

c)

tertiary structure

d)

quaternary structure

59.

The protein structure that results from a sequence of amino acids is:

a)

primary structure

b)

secondary structure

c)

tertiary structure

d)

quaternary structure

60.

Proteins are composed of_______ . Select all that applies.

a)

carbon

b)

hydrogen

c)

nitrogen

d)

phosphorus

61.

All proteins

a)

have a unique structure that determines their unique function.

b)

are exactly the same in function but different in structure.

c)

are exactly the same in structure but different in function.

d)

are enzymes.

62.

The order of amino acids determines the ______ and ultimately the function of a protein.

a)

shape

b)

color

c)

flavor

d)

texture

63.
With what 3 letters do enzymes typically end?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
64.

Enzymes are an example of

a)

Lipids

b)

Carbohydrate

c)

Protein

d)

Nucleic Acid

65.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
66.
In the diagram, what is letter A? 
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
67.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
68.
Letter B...
a)
active site
b)
enzyme
c)
substrate
d)
products
69.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
70.
An enzyme speeds up a reaction by
a)
lowering the activation energy.
b)
raising the activation energy.
c)
releasing energy.
d)
absorbing energy.
71.

What happens when enzymes are heated to a high temperature?

a)

The enzymes die.

b)

The shape of the enzyme are changed and it denatures

c)

The enzymes' amino acid sequence changes.

d)

The enzymes remain the same

72.
What are the components of a nucleotide?
a)
nitrogen base, phosphate group, and pentose sugar
b)
pentose sugar, purine, and pyrimidine
c)
nitrogen base and a phosphate group
d)
DNA, phosphate group, monosaccharide
73.
RNA contains the sugar...
a)
Deoxyribose
b)
Glucose
c)
Ribose
d)
Lipids
74.
What is the function of ATP in living things?
a)
provides energy for cells
b)
stores genetic information
c)
provides structure in the nucleus
75.
Which bond of the ATP molecule is broken in order to release energy?
a)
A
b)
B
c)
C
d)
D
76.
What type of macromolecule is ATP/ADP?
a)
Carbohydrate
b)
Nucleic Acid
c)
Lipid
d)
Protein

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