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Matter
Test Description: Basic atom states of matter and law of conservation of mass
Instructions: Answer all questions to get your test result.
1) Which of the following is an example of asubatomic particle?
A
carbon
B
oxygen
C
electron
D
hydrogen
2) What two types of particles exist within an atomic nucleus?
A
protons/ neutrons
B
protons/neutrinos
C
neutrons/ electrons
D
positrons/neutrons
3) Oxygen has an atomic number of 8. What can you conclude from this fact?
A
an atom of oxygen has 8 positrons
B
an atom of oxygen weighs 8 grams
C
an atom of oxygen has 8 protons
D
an atom of oxygen has 4 protons and 4 electrons
4) How are molecules different from atoms?
A
they do not form bonds with other atoms
B
they do not contain neutrons
C
their particles do not have a charge
D
they consist of several atoms bonded together
5) The word atoms comes from a Greek word for indivisible. In what way are atoms indivisible?
A
they cannot be broken apart without losing their chemical properties
B
they cannot be separated once they are bonded with other atoms
C
they cannot form bonds with other atoms
D
they cannot gain or lose electrons
6) What can you conclude from the fact that electrons orbit far away from the nucleus?
A
protons have a positive charge
B
atoms are comprised of mostly empty space
C
electrons are extremely small
D
atoms consist of subatomic particles
7) During a science experiment a student is asked to list physical properties of gold. Which of the following would be a physical property?
A
solid
B
color
C
density
D
ALL of these
8) The law of conservation of mass says substances can neither be ___________or _________
A
created; destroyed
B
built; torn down
C
condensed; extracted
D
blended together; separated
9) How is weight different from mass?
A
weight changes depending on gravity, mass stays constant throughout the universe
B
weight is measured with a scale; mass a balance
C
weight can be converted to energy; mass cannot
D
weight is measured in grams; mass in newtons
10) 4 grams of hydrogen and 32 grams of oxygen will combine to form:
A
32 grams of oxygen
B
36 grams of deuterium
C
28 grams of hydroxide
D
36 grams of water
*select an answer for all questions
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