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WorksheetsPhysical Science Final Exam Semester 1
Total questions: 66
Worksheet time: 6hrs 30mins
Which of the following is a property of a nonmetal?
It has a hard and shiny surface.
It can be bent into different shapes
It is a poor conductor of electricity
It is a good conductor of heat.
H2SO4 = Sulfuric Acid
According to the chemical formula in the box above, all of the following chemical elements can be found in a molecule of sulfuric acid EXCEPT _____________.
carbon
hydrogen
oxygen
sulfur
H - P: 1, N: 0
C - P: 6, N: 6
O - P: 8, N: 8
Ur - P: 92, N: 142
The mass number of an atom is equal to the number of protons and neutrons in its nucleus. According to this definition, which of the elements in the table has the highest mass number?
Hydrogen
Carbon
Oxygen
Uranium
Most atoms contain one or more positively charged particles in their nuclei. These positively charged particles are called
neutrons
electrons
protons
compounds
Based on the behavior of matter, which of these would take the shape of the container it was placed in?
Amorphous solid
Crystalline solid
Liquid
500 hydrogen atoms
Which phase has the greatest density?
the solid phase
the liquid phase
the gas phase
The temperature must be known to answer this question.
Condensation happens when a gas changes into a liquid. Which of these is an example of condensation?
water vapor turning into rain
water vapor turning into snow
a pond melting in the spring
a pond freezing in the water
2Cu + O2 ---------> 2CuO
In the equation above, what is the coefficient of the copper molecule?
0
1
2
4
Information about states of matter would most likely be found under which heading in a table of contents?
chemical reactions
physical properties
salts
mass and weight
Which of the following is a physical change?
metal rusting
ice melting
food digeting
wood rotting
Two compounds are mixed together and the result is a sharp hiss and a cloud of vapor.
What causes this event?
density
electricity
chemical reaction
physical substance
Which statement best describes the structure of an atom?
An atom consists of a neutral center surrounded by a cloud of positive particles.
An atom consists of a positive center surrounded by a cloud of negative particles.
An atom consists of a negative center surrounded by a cloud of negative particles.
An atom consists of a positive center surrounded by a cloud of neutral particles.
Under which heading in a table of contents would information about elements with eight electrons in their outer level be found?
Alkali Metals
Halogens
Nobel Gases
Isotopes
The picture above shows a sodium atom and its various energy levels filled with the appropriate number of electrons. According to this picture, which energy level has electrons available for bonding?
Nucleus
Level 1
Level 2
Level 3
Hydrogen Peroxide - H2O2
Carbon Dioxide - CO2
Ozone - O3
Vinegar - CH3CO2H
According to this information, which chemical has more than two atoms of oxygen?
Hydrogen Peroxide
Carbon Dioxide
Ozone
Vinegar
Information about chemical reactions that release thermal energy most likely would be found under which category in a textbook?
endothermic
exothermic
electrolysis
activation energy
Zn + Ag2S --------> ZnS + ?Ag
All chemical equations follow the law of conservation of mass. Which number should be used in place of the question mark to balance this equation?
1
2
0
4
Which two molecules contain an equal number of atoms?
C2H6 KMnO4 H2SO4 C2H3OH
H2SO4 and C2H3OH
C2H6 and KMnO4
KMnO4 and H2SO4
C2H6 and C2H3OH
What is the greatest number of valence electrons an atom can have?
100
3
8
1
Which of the following cannot be found on the Periodic Table?
Aluminum Chloride (AlCl3)
Nitrogen (N)
Oxygen (O)
Magnesium (Mg)
Which of the following describes a catalyst?
It is a reactant.
It speeds up a reaction.
It appears in the chemical equation.
It can be used in place of an inhibitor
The atoms in a column of the periodic table all have
the same abbreviation.
the same number of energy levels.
the same number of electrons.
the same number of valence electrons.
Which change in the state of water particles causes the particles to become arranged in a fixed position?
boiling
melting
freezing
evaporating
Which sequence has the states of matter listed from least to greatest kinetic energy?
solid liquid gas
gas liquid solid
liquid solid gas
A student is given a liquid compound in a beaker. Which of the following is the best way to describe this liquid compound?
definite shape, indefinite volume
indefinite shape, indefinite volume
definite shape, definite volume
indefinite shape, definite volume
Water puddles on a sidewalk evaporate when the Sun heats the water. Which of these best describes what is happening as the water evaporates?
Water changes phase as it releases heat to the environment.
Water boils as it absorbs energy from the sidewalk.
Water becomes a gas as it absorbs energy from the Sun.
Water evaporates as its thermal energy is transferred to the air.
The drawing below shows three sealed containers labeled X, Y, and Z. Each contains a sample of matter in a different state.
Based on this information, which statement most likely represents the state of matter in each container?
X contains a solid, Y contains a liquid, and Z contains a gas.
X contains a solid, Y contains a gas, and Z contains a liquid.
X contains a liquid, Y contains a solid, and Z contains a gas.
X contains a gas, Y contains a liquid, and Z contains a solid.
New substances formed during a chemical reaction are indicated
on the right side of the equation and are called reactants.
on the left side of the equation and are called products.
on the right side of the equation and are called products.
on the left side of the equation and are called reactants.
Materials made of the same substance will have characteristics in common. Which property is most likely to remain constant in different samples of the same material?
density
mass
shape
volume
Which property of a mineral can be determined just by looking at it?
luster
mass
weight
hardness
Carbon dioxide (CO2) is not found on the Periodic Table because carbon dioxide is –
an atom
a gas
a mixture
a compound
Which task in the kitchen is an example of a physical change?
frying an egg
baking a cake
melting butter
toasting bread
Diamonds are sometimes used as the tips of drill bits. Which physical property of a diamond MOST likely makes it a good cutting tool?
its electrical properties
its thermal properties
its hardness
its density
A science teacher places a sealed microwave bag of popcorn on a balance and measures its mass. She microwaves the popcorn and finds the mass again before opening the bag. The masses are nearly the same.
Which scientific law does this BEST demonstrate?
Law of Cause and Effect
Law of Thermodynamics
Law of Conservation of Volume
Law of Conservation of Matter
What is an ion?
an atom that doesn’t have protons
the opposite of an electron
an atom that doesn’t have neutrons
an atom or group of atoms that has become electrically charged
Which of the following is evidence that a chemical reaction is occurring?
change in shape
formation of bubbles
temperature remains constant
substance changes from a solid to a liquid
This part of the water cycle is powered by solar energy
runoff
precipitation
condensation
evaporation
Which of the following materials is an insulator, and does NOT conduct energy well?
copper wires
aluminum foil
blankets
iron nail
Which accounts for most of the mass of an atom?
electrons
protons
neutrons and protons
electrons and neutrons
Which of the following is a chemical property of iodine?
violet as a gas
silver-black as a solid
reacts with starch to give a dark blue color
a solid at room temperature
The temperature at which a solid turns to a liquid is called the…
freezing point
melting point
boiling point
condesation point
Which of the following parts of the atom is NOT correctly matched to its charge?
Proton: Positive
Neutron: Negative
Neutron: No charge
Electron: Negative
Which of the following is an example of an element?
milk
air
oxygen
carbon dioxide
Which of the following is a compound?
salt (NaCl)
water (H2O)
sugar (C6H12O6)
all of the above
Which of the following families on the Periodic Table would be the MOST reactive?
Nobel Gases
Transition Metals
Alkali Metals
Metalloids
Atoms on the Periodic Table are arranged
alphabetically
by increasing atomic mass
by increasing atomic number
by date of discovery, or synthetic preparation
You put 1 gram of salt into 1 liter of water and stir. The resulting liquid is an example of
a pure substance
a heterogeneous mixture
a homogeneous mixture
an immiscible mixture
The direct conversion of a solid to a gas is called
evaporation
condensation
melting
sublimation
Changing from one state to another is a
chemical change
physical change
chemical property
physical property
Matter is anything that
occupies space
has mass
both
none of the above
Air is a mixture of nitrogen (about 78%), oxygen (about 21%), argon (about 1%), and carbon dioxide (about 0.03%). Which of the choices below best describes air?
pure substance
heterogeneous mixture
homogeneous mixture
compound
What is a pure substance made of two or more elements that are chemically combined called?
a solution
a compound
a mixture
an element
A substance made of atoms that are all alike and not bonded with other atoms is
an element
a compound
a mixture
a solution
One chemical property that can be measured in a substance is its reactivity with water. What is another chemical property?
density
flammability
malleability
solubility
Certain elements with similar chemical and physical properties are found in the same column in the Periodic Table of the Elements. These chemicals
are in the same period.
are in the same family.
have the same number of electrons.
have the same atomic mass number.
An element’s properties can be predicted from its
symbol
number of neutrons
atomic mass
location on the periodic table
Thermal energy reaches Earth from the Sun by:
conduction
diffraction
radiation
convection
An ice cube is put into a glass of water and starts to melt. Which statement explains why?
the ice cube absorbs thermal energy from the water in the glass
the ice cube gives its thermal energy to the water in the glass
the ice cube transfers its coldness to the water in the glass
the ice cube absorbs coldness from the water in the glass
How was the test?
Easy
Somewhat Easy
Hard
Difficult
