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WorksheetsPhysical Science S1 Final Exam REVIEW Apologia 3rd edition
Total questions: 73
Worksheet time: 41mins
The smallest chemical unit of matter.
Atom
Molecule
Concentration
Two or more atoms linked together to make a substance with unique properties.
Atom
Molecule
Concentration
Sulfur - a yellow powder composed of sulfure atoms.
Sulfur dioxide - a colorless, poisonous gas that contains sulfur atoms
Sulfur dioxide is composed of ________.
atoms
molecules
The metric measurement "kilograms" represents ____________.
mass
volume
length
The metric measurement "centimeters" represents _________.
length
volume
mass
What metric prefix means "1,000"?
Kilo
Mili
Gram
Centi
What is the metric prefix for "10"?
Deca
Hecta
Inch
What metric prefix represents "0.10"?
deci
mili
centi
flammability
physical property
chemical property
water is heated and turns to steam
physical change
chemical change
density
physical property
chemical property
All matter takes up space and
dissolves in water
has mass
has a definite shape
is visible
What state of matter has a definite volume but not a definite shape?
Solid
Liquid
Gas
Plasma
What is the ratio of a substance's mass to its volume?
dissection
deep
diffusion
density
All pure substances
contain only one type of atom.
can be broken down into simpler substances.
have a variable composition.
have a fixed composition.
iron rusts
physical change
chemical change
The three common phases of matter used to group substances are
solvents, solutes, and solutions.
elements, compounds, and mixtures.
solids, liquids, and gases.
metals, plastics, and wood.
Which of the following is not an example of a physical property?
melting point
reactivity
density
hardness
Evaporation and condensation
are chemical
both result in the production of a liquid from a gas
involve a change of phase
are identical processes
salt dissolves in water
physical change
chemical change
odor
physical property
chemical property
Which of these substances is not an element?
water
hydrogen
aluminum
iron
What is a substance that does the dissolving?
solid
solution
solvent
solute
reacts with water to form a gas
physical property
chemical property
an acid and a base react to form a salt, water, and heat
physical change
chemical change
ice melts
physical change
chemical change
Which state of matter has a definite shape and volume?
solid
liquid
gas
plasma
milk curdles
physical change
chemical change
The sum of the protons and neutrons in the nucleus of a cell.
Atomic number
Mass number
Number
Atoms of an element with the same number of protons but different numbers of neutrons.
Orbitals
Isotopes
Mixtures
Matter cannot be created or destroyed, but it can change forms.
Law of Constant Composition
Law of Conservation of Mass
Newton's Third Law of Thermodynamics
Electrons that are in the highest energy level of an atom
Important electrons
Valence electrons
Energetic electrons
Samples of a pure compound always have the same elements in the same mass proportions
Law of Conservation of Mass
Law of Constant Composition
Law of Mass Proportions
The number of ____ in an atom is the atomic number.
electrons
protons
neutrons
A region of space around the nucleus where electrons are most likely to be found.
Rings
Orbitals
Pipe cleaners
Where is almost all of the mass of an atom found?
protons
neutrons
electrons
nucleus
What type of particle is an electron?
a negative charge, found in the nucleus
a negative charge, found outside the nucleus
a positive charge, found outside the nucleus
no charge, found outside the nucleus
The atomic number of argon is 18. How many electrons are there in argon-38?
16
18
20
56
How many neutrons would be in argon-38?
16
18
20
56
If elements have the same number of valence electrons, they are
called halogens
called noble gases
in the same group
in the same period
What are the most reactive metals?
alkali metals
alkaline earth metals
transition metals
metalloids
Which elements are all gases?
Group 1A
Group 2A
Group 7A
Group 8A
Which statement about oxygen-17 and oxygen-18 is true?
They have identical mass.
They are isotopes of oxygen.
They have different numbers of protons.
They have different numbers of electrons.
What is the maximum number of electrons that an atomic orbital can contain?
2
4
8
16
If an atom of an element has a mass number of 31 and 16 neutrons in its nucleus, what is the atomic number of the element?
47
31
16
15
Water molecules are polar because:
There is a magnetic field just like in the earth's magnetic field
They are in the ocean
One side of the molecule is colder than the other
Oxygen gets more than its fair share of the electron making one side more negative
Define: Solute
A substance that dissolves other substances.
A substance that is dissolved in a solvent.
A gesture made by touching the hand to the forehead.
If a substance dissolves in water, it will dissolve in vegatable oil which is a nonpolar substance, true or false?
True
False
Define: Solvent
A liquid substance capable of dissolving other substances.
A substances that dissolves in liquid.
Two substances that combine to solve all your problems.
H2O2 is the chemical formula for water, true or false?
True
False
How many atoms are in H2O?
1
2
3
A molecule that has slightly positive and negative charges due to an imbalance in the electrons are shared is a:
Ionic Molecule
Polar Molecule
Radioactive Molecule
Imbalanced Molecule
If a substance does not dissolve in water it is a nonpolar substance, true or false?
True
False
What are compounds made of only two elements?
Binary compounds
Non-binary compounds
double compounds
chemical compounds
What does the formula of an ionic compound describe?
the number of elements in the compound
chemical compound
the ratio of the ions in the compound
What is the name of this ionic compound: MgCl2
Magnesium Chloride
Calcium Chloride
Molybdenum Chloride
In order to write the formula of an ionic compound, the symbols of the (blank) in the compound and the charges of their ions.
(a)
What is the formula for calcium chloride?
Ca1Cl3
Cl2Ca1
CaCl2
What is the name of the molecular compound, PCl5?
Lead Chloride
Phosphorous Pentachloride
Phosphorus Chloride
Polonium Pentachloride
A chemical reaction in which a compound breaks down into 2 or more simpler substances is called what?
combustion reaction
double replacement reaction
decomposition reaction
What is a chemical reaction in which a substance reacts rapidly with oxygen?
Combustion reaction
Single replacement reaction
Synthesis reaction
Exothermic reaction
Energy is either or released in a chemical reaction.
doubled
created
absorbed
destroyed
What do chemists use to count atoms, ions or molecules?
moles
mice
marks
minutes
A chemical reaction that absorbs energy from its surroundings is called what?
double replacement reaction
combustion reaction
endothermic reaction
decomposition reaction
What is Reference point?
A physical measurement that contains only magnitude (number) and does not contain directional information.
The time rate of change of an objects velocity
A point against which direction is measured.
The distance an object travels plus the direction from the starting point
A physical measurement that contains both magnitude (number) and directional information.
What is Displacement?
A physical measurement that contains only magnitude (number) and does not contain directional information.
The time rate of change of an object's velocity.
A point against which direction is measured
The distance an object travels plus the direction from the starting point
A physical measurement that contains both magnitude (number) and directional information.
What is Vector quantity?
A physical measurement that contains only magnitude (number) and does not contain directional information.
The time rate of change of an object's velocity
A point against which direction is measured
The distance an object travels plus the direction from the starting point
A physical measurement that contains both magnitude (number) and directional information.
What is Scalar quantity?
A physical measurement that contains only magnitude (number) and does not contain directional information.
The time rate of change of an object's velocity
A point against which direction is measured
The distance an object travels plus the direction from the starting point
A physical measurement that contains both magnitude (number) and directional information.
If you are a passenger in the rear seat of a car moving at a steady speed, relative to whom are you at rest?
a person on the side of the road
the driver in the front seat
a pedestrian on the corner
a person in a passing car
You walk 1 mile every day for exercise, leaving your front door at 9:00 AM and returning to your front door at 9:45 AM. What is the total displacement of your daily walk?
1 mile
0
2 miles
none of the above
Speed is defined as the ratio of the distance an object moves to what?
the amount of time needed to travel the distance
the direction the object moves
the motion of the object
the size of the object
What does the slope of a distance-time graph indicate?
distance
time
speed
displacement
What does a horizontal (flat) line on a distance-time graph mean?
the object is moving at a constant speed
the object is moving faster
the object is slowing down
the object is at rest
