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WorksheetsChemistry Review
Total questions: 54
Worksheet time: 28mins
Name
Class
Date
1.
What kind of change is a phase change?
a)
Physical - it's still the same substance
b)
chemical - it's made of chemicals
2.
A chemical change happens when...
a)
a substance is changed at the atomic level
b)
bonds are broken and formed
c)
a new substance is made
d)
all of the above!
3.
The compounds or elements present at the end of a reaction
a)
reactants
b)
catalyst
c)
products
d)
energy
4.
The compounds and elements that are present at the beginning of a reaction:
a)
reactants
b)
catalyst
c)
products
d)
energy
5.
What is the law of Conservation of Mass?
a)
A measure of how much mass is created or destroyed.
b)
Mass can neither be created nor destroyed during a chemical reaction.
6.
A balanced equation honors which of the following?
a)
The First Law of Thermodynamics
b)
The Second Law of Thermodynamics
c)
The Law of Conservation of Matter
d)
The Law of Multiple Proportions
7.
An atom has 12 protons, 12 electrons and 14 neutrons. What is the mass number?
a)
12
b)
24
c)
26
d)
38
8.
Which part of the atom is positively charged and is found in the nucleus?
a)
proton
b)
electron
c)
neutron
d)
neutrino
9.
The elements in Group A are known as_______.
a)
halogens
b)
noble gases
c)
alkali metals
d)
alkaline earth metals
10.
Any sample of matter has mass and takes up space. The main reason for this is because
a)
Matter can be a gas
b)
Matter is made up of tiny particles that have mass and take up space
c)
The earth is made of matter
d)
I don't know
11.
When you bring two drops of water near each other and allow them to touch, they combine immediately and become one drop. This is mainly because
a)
Water molecules are made of atoms
b)
Water molecules are attracted to each other
c)
Water molecules are magnetic
d)
Water is a liquid
12.
Food coloring spreads out faster in hot water than in cold water. This is mainly because
a)
The water molecules in hot water move more quickly
b)
The molecules in hot water are larger
c)
The food coloring molecules are small
d)
Hot water is less dense
13.
Anything that takes up space and has mass is
a)
Matter
b)
Volume
c)
Liquid
d)
Atom
14.
The amount of space that matter takes up
a)
Matter
b)
Volume
c)
Liquid
d)
Atom
15.
Matter that have volume, but no shape
a)
Matter
b)
Volume
c)
Liquid
d)
Atom
16.
Temperature at which a solid changes to a liquid is
a)
Volume
b)
Atom
c)
Matter
d)
Melting Point
17.
A tiny building block of matter is
a)
Liquid
b)
atom
c)
Volume
d)
Gas
18.
When a gas (vapor, steam) cools and changes into a liquid
a)
gas
b)
balance
c)
physical property
d)
condensation
19.
How something looks, sounds, feels, smells, or tastes
a)
gas
b)
balance
c)
physical property
d)
condensation
20.
When a liquid becomes a gas (vapor, steam)
a)
evaportation
b)
balance
c)
physical property
d)
condensation
21.
A solid is
a)
has particles that are far apart
b)
has a size and shape of its own
c)
takes the shape of its container
22.
A liquid flows and takes its container’s
a)
shape
b)
volume
c)
temperature
23.
Matter can change states from solid to liquid to gas when
a)
a. heat is removed
b)
a. heat is added
c)
a. water is added
d)
a. mass is added
24.
What is the element name for the symbol H?
a)
Hydrogen
b)
Helium
25.
My name is Carbon, what is my symbol?
a)
C
b)
CB
c)
Cn
d)
Ca
26.
My name is Helium, what is my symbol?
a)
H
b)
He
c)
Hm
d)
HE
27.
My name is Chlorine, what is my symbol?
a)
Ca
b)
C
c)
Cl
28.
My name is Mercury, what is my symbol?
a)
Me
b)
My
c)
Hg
d)
HG
29.
If an element is in group 1 which group would they most likely bond with to form an ionic bond?
a)
Group 1
b)
Group 17
c)
Group 18
d)
Elements don't make bonds
30.
What is the common name for H2O?
a)
Baking Soda
b)
Water
c)
Salt
31.
Carbon Dioxide's chemical formula is known as....
a)
CO
b)
CO2
c)
Co2
32.
All the elements on the elements on the right of the periodic table are called...
a)
Metals
b)
Metalloids
c)
Nonmetals
33.
All the elements on the left side of the periodic table are called..
a)
Metals
b)
Metalloid
c)
Nonmetals
34.
Which is a Halogen?
a)
Bromine
b)
Cobalt
c)
Iron
d)
Nickel
35.
What is the name of the group that has the MOST reactive METALS in it?
a)
Alkaline earth
b)
Alkali
c)
transition
d)
actinides
36.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
37.
What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!
a)
noble gases
b)
transition
c)
halogens
d)
borons
38.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
39.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
40.
Which of the following is unique for any given element?
a)
the number of neutrons
b)
the charge on the electrons
c)
the number of protons
d)
the mass of a neutron
41.
Which statement is true about oxygen-17 and oxygen-18?
a)
They do not have the same number of protons.
b)
Their atoms have an identical mass.
c)
They are isotopes of oxygen.
d)
The have the same mass number.
42.
Is Hydrogen considered a metal or a non-metal?
a)
Metal
b)
Non-metal
c)
Metalloid
d)
liquid
43.
Which particle is negatively charged?
a)
proton
b)
atom
c)
neutron
d)
electron
44.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
45.
Gold has how many protons?
a)
47
b)
79
c)
31
d)
17
46.
How many electrons would an atom of Krypton have?
a)
83.80
b)
36
c)
12
d)
none
47.
A substance that is made up for one type of atom is called an:
a)
atom
b)
element
c)
compound
d)
mixture
48.
How are elements ordered on the Periodic Table?
a)
Alphabetical Order
b)
By their color.
c)
By their atomic mass.
d)
By their atomic number.
49.
Which item on this element square is the chemical symbol?
a)
Copper
b)
29
c)
Cu
d)
63.546
50.
Which item on this element square is the atomic number?
a)
Helium
b)
2
c)
He
d)
4.0026
51.
Where on the periodic table are the metalloids found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Right Side
52.
Where on the periodic table are most of the metals found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Left Side
53.
Where on the periodic table are most of the nonmetals found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Left Side
54.
Most of the nonmetals are?
a)
solids
b)
liquids
c)
gases
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