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Worksheetschemistry
Total questions: 101
Worksheet time: 5hrs 45mins
Name
Class
Date
1.
The most basic building block of matter (smallest part of an element) is called a(n) __________.
a)
Product
b)
Reactant
c)
Atom
d)
Molecule
2.
A(n) _____ is a unique substance that forms when two or more elements combine chemically.
a)
element
b)
compound
c)
mixture
d)
all of the above
3.
A compound always has the same ___________ in the same proportions (ratio).
a)
elements
b)
carbons
c)
mixtures
d)
ions
4.
A(n) _____ is the smallest particle of a compound that still has the compound’s properties.
a)
atom
b)
molecule
c)
element
d)
mixture
5.
A physical property can be observed by _________________.
a)
burning the substance
b)
changing the chemical identity of a substance
c)
using the senses
d)
placing the substance in acid
6.
Signs that a chemical change has occurred include
a)
a change in color
b)
the release of bubbles
c)
the production of an odor
d)
all of the above
7.
All the elements on the left side of the periodic table are called..
a)
Metals
b)
Metalloid
c)
Nonmetals
8.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
9.
A substance that is made up for one type of atom is called an:
a)
atom
b)
element
c)
compound
d)
mixture
10.
Which of these elements is a metal?
a)
argon
b)
carbon
c)
iron
d)
hydrogen
11.
All matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
12.
Where on the periodic table are the metalloids found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Right Side
13.
If I have a block of wood with a density of 0.5 g/cm3 and I cut it in half, the density of one of the halves of wood would now be. . .
a)
0.25 g/cm3
b)
1.0 g/cm3
c)
0.5 g/cm3
d)
5.0 g/cm3
14.
Which of the following represents a physical change?
a)
burning a candle
b)
lighting a match
c)
mixing a batch of lemonade
d)
baking a cake
15.
Which of the following is typically a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
16.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
17.
Nonmetals are located in what section of this periodic table?
a)
Blue
b)
Yellow
c)
Pink
18.
In the compound 2H2, the H stands for
a)
Helium
b)
Hydrogen
c)
Herculineum
19.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
20.
H2
a)
Element
b)
Compound
21.
CO2
a)
Element
b)
Compound
22.
CaCo3
a)
Element
b)
Compound
23.
H2O
a)
Element
b)
Compound
24.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
25.
Particles in an atom's nucleus that are neutral and have no charge are
a)
megatrons.
b)
electrons.
c)
neutrons.
d)
protons.
26.
A negatively charged particle that moves around the nucleus is a(n)
a)
proton
b)
neutron
c)
electron
d)
quark
27.
These are found on the Periodic Table.
a)
elements
b)
mixtures
c)
compounds
28.
What is matter?
a)
anything that has mass and takes up space
b)
a substance that consists of one type of atom
c)
a small particle that is a building block
d)
the amount of mass per unit volume
29.
Which of the following is NOT made of matter?
a)
you
b)
your phone
c)
light
d)
backpack
30.
Which of the following has a positive charge?
a)
proton
b)
neutron
c)
electron
31.
A chemical formula is a combination of symbols and numbers that represent a compound.
a)
True
b)
False
32.
Two samples of the same mixture can contain different amounts of the same substances.
a)
True
b)
False
33.
Oxygen is an example of
a)
an element.
b)
a compound.
c)
a substance.
d)
a mixture.
34.
Which of the following is an example of a compound?
a)
sugar
b)
hydrogen
c)
boron
d)
apple juice
35.
Solutes dissolve in solvents.
a)
True
b)
False
36.
Which of the following is an example of a size-dependent physical property?
a)
volume
b)
state of matter
c)
conductivity
d)
boiling point
37.
The melting point refers to
a)
the point at which a liquid turns into a gas.
b)
the point at which a solid turns into a liquid.
c)
a substances ability to conduct thermal electricity.
d)
the amount of space something takes up.
38.
Which of the following is an example of a gas?
a)
aluminum
b)
water
c)
oxygen
d)
iron
39.
Physical properties can be used to separate a compound.
a)
True
b)
False
40.
Which of the following terms best describes a change in shape, size, form, or state of matter in which the identity of the substance stays the same?
a)
chemical change
b)
element
c)
physical change
d)
conductivity
41.
What happens to the particles in a substance when thermal energy is removed?
a)
the particles move faster
b)
the particles speed does not change
c)
the particles move slower
42.
_______________ is when a gas turns into a solid.
a)
melting point
b)
sublimation
c)
condensation
d)
deposition
43.
The ________________ is best described as particles are neither created nor destroyed during a physical or chemical change.
a)
Law of Conservation of Mass
b)
Chemical Reaction
c)
Chemical Equation
d)
Change in Thermal Energy
44.
A _______________ is a characteristic of matter that can only be observed when a substance becomes a different substance.
a)
chemical property
b)
chemical equation
c)
chemical change
d)
chemical reaction
45.
___________ is best described as the amount of a substance in a certain volume.
a)
solubility
b)
density
c)
concentration
d)
state of matter
46.
Which of the following is an example of a balanced equation?
a)
Na + 2Cl -> NaCl
b)
2Fe + S -> Fe2S
c)
CO2 + H2O -> CH4 + 2O2
d)
H2 + O2 -> H2O
47.
Which of the following is NOT an indication that a chemical change may have taken place?
a)
bubbles
b)
odor
c)
solubility
d)
color
48.
Which of the following is NOT a factor that can affect the speed of a chemical reaction?
a)
state of matter
b)
temperature
c)
concentration
d)
surface area
49.
What particles of an atom are found in the nucleus?
a)
proton and electron
b)
electron and neutron
c)
proton and neutron
d)
protons only
50.
Which of the following is a size-independent property?
a)
boiling point
b)
density
c)
magnetism
d)
all are size-independent properties
51.
What is all matter made up of?
a)
Air
b)
Particles
c)
Water
d)
Carbon
52.
What is true of all matter?
a)
It has particles
b)
It has volume
c)
It has mass
d)
All are correct
53.
What is another name for a particle?
a)
Atom
b)
Element
c)
Ion
d)
Nucleus
54.
Which of the following is a detector?
a)
Proton
b)
Atom
c)
Nose
d)
State of Matter
55.
Which of the following behaviors of gas would have the most empty space between particles?
a)
Expanded Air
b)
Room Air
c)
Compressed Air
d)
No Air
56.
Which of the following behaviors of gas would have the least empty space between particles?
a)
Expanded Air
b)
Room Air
c)
Compressed Air
d)
Heated Air
57.
Which state of matter has the largest particles?
a)
Solid
b)
Liquid
c)
Gas
d)
Particles are always the same size
58.
Which of the following is in the solid form?
a)
Water
b)
Lava
c)
Water Vapor
d)
Baseball
59.
What are smells made of?
a)
Atoms
b)
Invisible solid matter
c)
Smells don't actually exist
d)
Nothing
60.
Does air have mass?
a)
Yes
b)
No
c)
Sometimes
61.
Is air matter?
a)
Yes
b)
No
62.
What is an element?
a)
A substance made of different atoms
b)
A substance made of only one type of atom
c)
A substance with one atom
d)
A substance in the solid form
63.
What is a molecule?
a)
A substance made of different atoms
b)
A substance made of the same atoms
c)
An atom
d)
A substance in the gaseous form
64.
Which of the following is NOT a characteristic of matter?
a)
Color
b)
Shape
c)
Hardness
d)
Melting Point
65.
Which of the following can be used to determine whether two elements are the same?
a)
Color
b)
Hardness
c)
Malleability
d)
All of these can be used
66.
What happens to particles when they heat up?
a)
The particles move more slowly
b)
The particles move more quickly
c)
The particles stop moving
d)
The particles break apart into protons
67.
Why do particles move quicker when they are heated up?
a)
The particles move quicker, causing the heat to increase
b)
They try to move away from the heat
c)
The particles don't actually move quicker
d)
The heat energy is transfered to the particles
68.
Which temperature would have the most space between particles?
a)
Hot air
b)
Cold air
c)
Room temp
d)
They all have the same amount of space
69.
What causes evaporation?
a)
The particles in liquid can sometimes escape the surface of the liquid and become gas particles
b)
The particles react with the air, which causes particles to be pulled out.
c)
The liquid dries at the surface
d)
Water vapor goes into a liquid.
70.
Scientifically speaking, what is temperature?
a)
How hot something is
b)
How cold something is
c)
How quickly particles move around in a substance
d)
When you're sick, you get one.
71.
Why does water boil at the bottom of a pot first?
a)
Because the bottom has more particles than the top
b)
Because of the shape of the pot
c)
Because that is where the heat energy is
d)
Because boiling water is heavier than cooler water
72.
What causes condensation on the side of a glass of ice water?
a)
Water seeps through the side of the cup
b)
Water vapor comes from air around the cup
c)
Hydrogen and oxygen outside of the cup mix to form water vapor
d)
The water comes from inside the cup
73.
Which element has a chemical symbol of O?
a)
Uranium
b)
Helium
c)
Carbon
d)
Oxygen
74.
What is condensation?
a)
When water vapors cool and move closer together
b)
When water vapors escape from the surface of a liquid
c)
When water is heated up, it can make the particles change to gas
d)
When ice melts to become water
75.
What is true of particles in a solid form?
a)
They don't move
b)
They move very slowly
c)
They move quickly
d)
They are less organized
76.
What happens when water boils?
a)
The heat breaks water molecules into hydrogen and oxygen gas
b)
The water becomes gaseous water vapor
c)
The particles are moving so quickly, air can get into the water
d)
None of these
77.
Is it possible that two elements can have the same properties?
a)
Yes
b)
No
78.
Which of the following is a chemical formula?
a)
Gaseous Water
b)
C
c)
C6H12O6
d)
Oxygen + Hydrogen = Water
79.
What element has the chemical symbol H?
a)
Helium
b)
Hydrogen
c)
Hiron
d)
Carbon
80.
What is carbon's chemical symbol?
a)
H
b)
Ca
c)
Cl
d)
C
81.
What is an Element?
a)
A substance that can't be broken down into other substances
b)
The trio: Fire, Water, Ice
c)
Who knows?
d)
A mixture of two substances
82.
What is a non-metal
a)
A substance that is a hard solid
b)
An element or substance that is not a metal
c)
An element or substance that is both hard and not hard
d)
The lanthanide elements
83.
What is a Metalloid?
a)
An element or substance that is semi-hard. It is also another term for semi metal.
b)
An element or substance that is hard, but not opaque
c)
Two metals mixed together
d)
Two metals in a compound
84.
What is a metal element
a)
An element or substance that is hard when in solid state, opaque, shiny, and has good electrical and thermal conductivity.
b)
An element or substance that is not hard
c)
An element or substance that is unknown
d)
Part of the Halogen group
85.
H is the chemical symbol for which element?
a)
Helium
b)
Hydrogen
c)
Mercury
86.
Na is the chemical symbol for which element?
a)
Sodium
b)
Nitrogen
c)
Neon
87.
K is the chemical symbol for which element?
a)
Krypton
b)
Potassium
c)
Knox
88.
Ca is the chemical symbol for which element?
a)
Carbon
b)
Chlorine
c)
Calcium
89.
Fe is the chemical symbol for which element?
a)
Freon
b)
Iron
c)
Flourine
90.
C is the chemical symbol for which element?
a)
Calcium
b)
Chlorine
c)
Carbon
91.
N is the chemical symbol for which element?
a)
Sodium
b)
Nitrogen
c)
Nickel
92.
O is the chemical symbol for which element?
a)
Osmium
b)
Odell
c)
Oxygen
93.
Si is the chemical symbol for which element?
a)
Silicon
b)
Sodium
c)
Sulfur
94.
The chemical symbol for hydrogen is
a)
Hy
b)
He
c)
H
95.
The chemical symbol for sodium is
a)
S
b)
So
c)
Na
96.
The chemical symbol for calcium is
a)
C
b)
Ca
c)
Na
97.
The chemical symbol for helium is
a)
H
b)
He
c)
Ha
98.
Silver
a)
S
b)
Ag
c)
Au
d)
Sn
99.
Neon
a)
No
b)
Na
c)
Ne
d)
Ni
100.
Fluorine
a)
Fl
b)
Ra
c)
Fr
d)
F
101.
Copper
a)
Cu
b)
C
c)
Cr
d)
Co
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