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Chemistry Vocabulary 42

Total questions: 42

Worksheet time: 27mins

Name
Class
Date
1.

Which change describes a substance that changes shape, form, or appearance but is still the same substance?

a)

physical change

b)

chemical change

2.

A single kind of matter that is pure and has a specific set of properties

a)

Mixture

b)

Pure substance

c)

Chemical reaction

d)

Physical property

3.
A substance that contains only one type of atom is a(n)
a)
compound
b)
element
c)
heterogeneous mixture
d)
homogeneous mixture
4.

A pure substance made from one kind of atom. Pick 2.

a)

molecule

b)

element

c)

gold

d)

water

5.

A substance formed by the chemical combination of two or more elements in definite proportion. Pick 2

a)

compound

b)

element

c)

gold

d)

water

6.
Two substances physically combined and that appears the same throughout is classified as
a)
A homogeneous mixture
b)
A heterogeneous mixture
c)
An element
d)
  A compound
7.
What is a homogeneous mixture?
a)
a mixture that is the same throughout.
b)
a mixture that is made up of one type of atom.
c)
a mixture that is made up of one type of compound
d)
a mixture that cannot be separated through physical changes
8.

A mixture that is NOT evenly distributed is called ....

a)

Compounded

b)

Homogenous

c)

Heterogenous

d)

Salty

9.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
10.

A state of matter that has a definite volume and shape.

a)

solid

b)

liquid

c)

gas

d)

matter

11.

This state of matter does not have a definite size or shape.

a)

Gas

b)

Liquid

c)

Solid

d)

Milk

12.
Liquids have a certain shape and a volume of their own. Liquids are something you can touch.
a)
True
b)
False
13.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
14.

What do we call a chemical substance made up of 2 or more different types atoms bonded together?

a)

formula

b)

atom

c)

subscript

d)

compound

15.
This is a mixture of two or more substances in which one or more of these substances (solutes) is dissolved in another substance.
a)
COMPOUND
b)
MOLECULE
c)
SOLUTION
d)
SOLVENT
16.

What is a solute?

a)

different materials placed together but keeping their own properties

b)

a mixture in which substances spread out evenly and will not settle

c)

the substance in a solution that has the least amount

17.

What is a solvent?

a)

different materials placed together but keeping their own properties

b)

a mixture in which substances spread out evenly and will not settle

c)

the substance in a solution that has the greatest amount

18.

What is solubility?

a)

different materials placed together but keeping their own properties

b)

a mixture in which substances spread out evenly and will not settle

c)

the degree to which a material will dissolve in another substance

19.

What is energy?

a)

moving energy

b)

stored energy

c)

renewable energy

d)

The ability to do work.

20.
In an endothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released 
21.

A physical or chemical change in which energy is released by a system.

a)

exothermic change

b)

temperature

c)

chemical

d)

physical

22.
melting
a)
change of state from solid to liquid
b)
change of state from liquid to solid
23.

The temperature at which a substance changes from a solid to a liquid (for water, this is 0 degrees Celsius, 32 degrees Fahrenheit)

a)

boiling point

b)

freezing point

c)

melting point

d)

evaporation

24.

The temperature at which a substance changes from liquid to gas (for water this is 100 degrees Celsius, 212 degrees Fahrenheit)

a)

boiling point

b)

melting point

c)

condensation

25.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
26.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
27.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
28.
Valence electrons are the...
a)
Innermost electrons
b)
Middle electrons
c)
Outermost electrons
d)
Any electrons
29.

One of several distinct regions around the nucleus of an atom where electrons are located

a)

energy level / orbital

b)

Tucson

c)

nucleus

d)

proton

30.

The atomic number in a neutral atom tells you what?

a)

only the number of electrons

b)

only the number of protons

c)

only the number of neutrons

d)

the number of both electrons and protons in an atom.

31.

What are valence electrons?

a)

Any of an atom's electrons

b)

Electrons located on the first energy level

c)

Electrons not attached to any atom

d)

electrons located on the outer energy level

32.
What is the mass number defined as?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
33.

What is the atomic mass of this atom?

a)

1

b)

3

c)

4

d)

7

34.

What does pH measure?

a)

the amount of hydrogen (H+) ions

b)

the amount of hydroxide (OH-) ions

c)

amount of water

d)

all of the above

35.

A solution is made up of

a)

Solvent

b)

Solute

c)

Both solvent and solute

36.

A property of a substance that is always the same whether the sample observed is large or small.

a)

characteristic property

b)

character trait

37.

The temperature at which a substance changes from a liquid to a solid (for water, this is 0 degrees Celsius, 32 degrees Fahrenheit)

a)

freezing point

b)

boiling point

c)

melting point

d)

evaporation

38.
Which property of matter is determined by dividing its mass by its volume?
a)
elasticity
b)
buoyancy
c)
density
d)
viscosity
39.
Anything made of matter must _____________________.
a)
take up space and have mass
b)
have mass and be a solid
c)
be a solid and not move
d)
take up space and be a liquid
40.

What kind of properties can only be observed when a substance changes into a different substance?

a)

physical properties

b)

chemical properties

c)

liquid properties

d)

real properties

41.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
42.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons

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