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States Of Matter Review
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Silver is a white metal that is an excellent conductor. Silver tarnishes when exposed to air and light. The density of silver is 10.49 g/cm3. The melting point is 962oC and the boiling point is 2000oC. A chemical property of silver is
A
density
B
melting point
C
conductivity.
D
ability to tarnish in air
2) An aluminum bar was found to have a mass of 27g. Using water displacement, the volume was measured to be 10 ml. What is the density of the aluminum?
A
270 g/ml
B
2.7 g
C
2.7 g/ml
D
279g
3) A solid rubber ball sinks when placed in water. What will happen if the ball is cut in half and one of the smaller pieces is placed underwater?
A
The smaller piece will sink.
B
The smaller piece will stay motionless.
C
The smaller piece will dissolve.
D
The smaller piece will rise.
4) Kamir and Alexis are studying the properties of water. They conducted a variety of experiments to determine its physical and chemical properties. Of the tests the students conducted, which one illustrates a chemical property of water?
A
salt dissolves in water
B
oil and water do not mix
C
neutral water reacts with carbon dioxide to form an acid solution
D
pencil shavings float on water and do not dissolve
5) A glass thermometer has a colored liquid inside it. The level of colored liquid rises when the thermometer is placed in hot water. Why does the level of liquid rise?
A
Heat molecules push the molecules of the liquid downward.
B
The molecules of the liquid break down into atoms and take up more space.
C
Water molecules are pushed into the thermometer.
D
Heat causes the molecules of the liquid to get farther apart.
6) What process takes solid CO2 from a solid to a gas?
A
Sublimation
B
Melting
C
Vaporization
D
Boiling
7) The average distance between molecules always increases during which of the following phase changes?
A
liquid to solid
B
gas to liquid
C
liquid to gas
D
gas to solid
8) The periodic table is organized by
A
atomic periodicity
B
atomic mass.
C
atomic number
D
atomic size.
9) The three basic components of an atom are
A
protium, deuterium, and tritium
B
protons, neutrons, and electrons
C
protons, neutrinos, and ions
D
protons, neutrons, and ions
10) An element is determined by the number of:
A
atoms
B
electrons
C
neutrons
D
protons
11) The nucleus of an atom consists of:
A
neutrons
B
electrons
C
protons, neutrons, and electrons
D
protons and neutrons
12) A single proton has what electrical charge?
A
negative charge
B
either a positive or negative charge
C
positive charge
D
no charge
13) Which particles have approximately the same size and mass as each other?
A
electrons and protons
B
protons and neutrons
C
neutrons and electrons
D
none - they are all very different in size and mass
14) The atomic number of an atom is:
A
the number of neutrons
B
the number of protons
C
the number of electrons
D
the number of protons plus the number of neutrons
15) The mass of individual atoms mainly comes from
A
Neutrons and protons
B
Neutrons and ions
C
Electrons and ions
D
Electrons and neutrons
16) Which of the following best describes an atom?
A
A core of electrons and neutrons surrounded by protons
B
Protons and electrons grouped together in a random pattern
C
Protons and electrons grouped together in an alternating pattern
D
A core of protons and neutrons surrounded by electrons
17) Which of the following is found farthest from the center of an atom?
A
Proton
B
Nuetron
C
Electron
D
Nucleus
18) Which sub-atomic particle has a negative charge?
A
Nulcleus
B
Electron
C
Proton
D
Neutron
19) Which of the following are transferred or shared when two atoms react chemically?
A
Electrons
B
Neutrons
C
Chemicals
D
Protons
20) In the periodic table, the rows are called:
A
Families
B
Classes
C
Groups
D
Periods
*select an answer for all questions
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