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7th Test Trimester 1 2019

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
In which state of matter do the particles spread apart and fill all the space available to them?
a.
solid
b.
crystal
c.
liquid
d.
gas
 

 2. 
Which particles in atoms have a negative electric charge?
a.
neutrons
b.
electrons
c.
protons
d.
nuclei
 

 3. 
Anything that has mass and takes up space is called
a.
matter.
b.
homogeneous.
c.
heterogeneous.
d.
energy.
 

 4. 
Lemonade consists of several substances that are NOT chemically combined, so lemonade is classified as a(n)
a.
element.
b.
compound.
c.
pure substance.
d.
mixture.
 

 5. 
A measure of how well a solute can dissolve in a solvent is a measure of this property.
a.
concentration.
b.
acidity.
c.
saturation point.
d.
solubility.
 

 6. 
In which state of matter are particles packed tightly together in fixed positions?
a.
solid
b.
liquid
c.
gas
d.
compound
 

 7. 
Anything that has mass and takes up space is considered
a.
matter.
b.
endothermic.
c.
energy.
d.
chemistry.
 

 8. 
CaCO3 represents a chemical
a.
symbol.
b.
formula.
c.
reaction.
d.
subscript.
 

 9. 
You mix 10 grams of salt in 100 grams of water for a 10% concentrated salt water solution. If you add more solute to the mixture, the concentration will...
a.
stay the same
b.
go up
c.
both a and b
d.
go down
 

 10. 
If you heat a liquid and measure the temperature at which it boils, you are measuring a(n)
a.
physical property.
b.
molecular property.
c.
chemical property.
d.
atomic property.
 

 11. 
What is vaporization?
a.
a gas becoming a liquid
b.
a liquid becoming a gas
c.
a gas becoming a solid
d.
a liquid becoming a solid
 

 12. 
The amount of space that a gas takes up is its
a.
volume.
b.
mass.
c.
pressure.
d.
density.
 

 13. 
This subatomic particle has a mass of 1 AMU, it’s found in the nucleus and it has no charge. It is a(n):
a.
Nucleus
c.
Electron
b.
Proton
d.
Neutron
 

 14. 
How do liquid water, ice, and water vapor differ from each other?
a.
They are made of different kinds of molecules.
b.
They are made of different kinds of atoms.
c.
They are different compounds.
d.
They are different states of matter.
 

 15. 
H2O, CO2, and C12H22O11 are all examples of chemical
a.
properties.
b.
bonds.
c.
changes.
d.
formulas.
 

 16. 
Which of the following scientists inferred that an atom’s positive charge must be clustered in the nucleus?
a.
J.J. Thomson
b.
Niels Bohr
c.
John Dalton
d.
Ernest Rutherford
 

 17. 
The surface of water can act like a sort of skin due to a property of liquids called
a.
condensation.
b.
viscosity.
c.
evaporation.
d.
surface tension.
 

 18. 
All elements are composed of extremely small particles called
a.
compounds.
b.
molecules.
c.
mixtures.
d.
atoms.
 

 19. 
In an atom, the number of protons equals the number of
a.
nuclei.
b.
electrons.
c.
neutrons.
d.
isotopes.
 

 20. 
What information in the periodic table indicates the number of protons in an atom?
a.
the position of the element in its column
b.
the element’s atomic number
c.
the element’s atomic mass
d.
the element’s chemical symbol
 

 21. 
The Chemical formula for Aluminum Sulfate is: 2Al(SO4)2.
a.
This is a compound formula containing a total of 22 atoms
c.
This is a mixture of aluminum, sulfur, and oxygen
b.
This is a comppound containing a total of 9 atoms
d.
This is a compound containing a total of 12 atoms
 

 22. 
The resistance of a liquid to flowing is its
a.
volume.
b.
pressure.
c.
temperature.
d.
viscosity.
 

 23. 
A solid is a state of matter that has a(n)
a.
indefinite volume and a definite shape.
b.
indefinite volume and an indefinite shape.
c.
definite volume and a definite shape.
d.
definite volume and an indefinite shape.
 

 24. 
Water is polar and oil is nonpolar. What happens when the two liquids are poured into the same container?
a.
Both liquids become nonpolar.
b.
The liquids mix well.
c.
A gas is produced.
d.
The liquids do not mix.
 

 25. 
Electrons involved in bonding between atoms are
a.
closest to the nucleus.
b.
valence electrons.
c.
inside the nucleus.
d.
positively charged.
 

 26. 
Which unique property of water prevents freezing in a pond from the bottom up?
a.
solid water is less denswe than liquid water
c.
high specific heat
b.
surface tension
d.
Its boiling point is out of the range of normal earth temperatures
 

 27. 
The opposite of vaporization is when a gas changes to a liquid. This change of state is...
a.
condensation.
b.
evaporation.
c.
freezing.
d.
sublimation.
 

 28. 
The freezing point of water is the same as its
a.
sublimation point.
b.
boiling point.
c.
melting point.
d.
evaporation point.
 

 29. 
The elements in a column or group of the periodic table
a.
have very similar chemical symbols.
b.
have similar chemical properties.
c.
are in the same period.
d.
have the same atomic mass.
 

 30. 
mc030-1.jpg
a.
This is a beryllium atom with atomic number 4 and mass number 9
c.
This is an isotope of a lithium atom with atomic number 3 and mass number 6
b.
This is a beryllium atom with atomic number 6 and mass number 6
d.
This is a lithium atom with atomic number 6 and mass number 6
 

 31. 
Substances that CANNOT be broken down chemically into other substances are
a.
solutions.
b.
elements.
c.
compounds.
d.
mixtures.
 

 32. 
Table sugar is an example of a(n)
a.
solution.
b.
mixture.
c.
compound.
d.
element.
 

 33. 
An uncovered pot of soup is simmering on a stove, and there are water droplets on the wall above the back of the stove. What sequence can you infer has occurred?
a.
condensation, then vaporization
b.
freezing, then thawing
c.
melting, then boiling
d.
vaporization, then condensation
 



 
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