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WorksheetsMatter Unit Review
Total questions: 30
Worksheet time: 13mins
Name
Class
Date
1.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A nucleus
d)
A molecule
2.
Which two particles make up the nucleus of an atom?
a)
protons and electrons
b)
protons and neutrons
c)
molecules and compounds
d)
neutrons and electrons
3.
What is the role of an electron in an atom?
a)
live inside the nucleus and carry a neutral charge
b)
circle the nucleus and have a positive charge
c)
live inside the nucleus and have a negative charge
d)
circle the nucleus and have a negative charge
4.
What determines the type of element an atom makes?
a)
The size of the nucleus
b)
The number of protons
c)
How much an atom weighs
d)
The number of neutrons
5.
What forms when two atoms combine?
a)
A nucleus
b)
A proton
c)
A molecule
d)
A neutron
6.
Which of the following cannot be broken down into something simpler?
a)
A compound
b)
An element
c)
A mixture
d)
A chemical formula
7.
Which of these is most like a recipe?
a)
An element
b)
A periodic table
c)
An electron formula
d)
A chemical formula
8.
What needs to occur in order for elements to form a compound?
a)
An elemental reaction
b)
An atomic reaction
c)
An electric reaction
d)
A chemical reaction
9.
Which is NOT an example of a compound?
a)
H2O
b)
NaCl
c)
CO2
d)
H
10.
What is different about Hydrogen and Helium atoms?
a)
The have different numbers of electrons and protons.
b)
They have different numbers of atoms.
c)
They are different.
11.
True or False: A compound often has different properties from the individual elements that compose it.
a)
True
b)
False
12.
Gold is a(n)
a)
mixture
b)
compound
c)
element
13.
Hydrogen peroxide is a(n)
a)
mixture
b)
compound
c)
element
14.
What is Fe?
a)
Boron
b)
Fluorine
c)
Francium
d)
Iron
15.
What is H?
a)
Hydrogen
b)
Helium
c)
Rubidium
d)
Gadolinium
16.
What is Hg?
a)
Magnesium
b)
Helium
c)
Mercury
d)
Hydrogen
17.
What is He?
a)
Holmium
b)
Helium
c)
Barium
d)
Cesium
18.
What is S?
a)
Sam
b)
Samuel
c)
Samantha
d)
Sulfur
19.
compunds are chemically bounded together
a)
False
b)
true
c)
I don't know?
20.
Is salt (2NaCI) a compound or a element
a)
Compound
b)
element
21.
which one only has one type of atom In it.
a)
Element
b)
compound
22.
An instant ice pack getting cold when the chemicals are able to touch.
a)
Chemical Change
b)
Physical Change
23.
Which of these is a product?
a)
methane
b)
carbon dioxide
c)
oxygen gas
d)
all of these
24.
What should be written between the reactants and products?
a)
an equal sign
b)
a triangle
c)
an arrow
d)
the word "yields"
25.
What is the large 2 in front of oxygen called?
a)
Subscript
b)
Superscript
c)
Coefficient
d)
Exponent
26.
What is the small 2 attached to the reactant oxygen called?
a)
Subscript
b)
Superscript
c)
Coefficient
d)
Exponent
27.
Products are usually found on which side of an equation?
a)
Left side
b)
Right side
c)
Either side
28.
Which element is the most abundant in the atmosphere?
a)
Oxygen
b)
Nitrogen
c)
Argon
d)
Carbon Dioxide
29.
Which element is in the atmosphere, ocean, living things and the earth's crust?
a)
Chlorine
b)
Aluminum
c)
Oxygen
d)
Hydrogen
30.
All of the following elements are in Earth's crust except which one?
a)
Oxygen
b)
Sodium
c)
Alumunim
d)
Silicon
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