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Question
The copolymer styrene-butadiene rubber (SBR), shown below, is used for making tires as well as bubble gum. Is it an addition polymer or a condensation polymer?
A) SBR is an addition polymer.
B) SBR is an condensation polymer.
C) SBR is neither an addition nor a condensation polymer.
D) SBR is both an addition and a condensation polymer.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Heat energy is measured in units of
A) degrees.
B) joules.
C) calories.
D) both joules and calories.
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When the temperature of a fixed volume of air initially at 0 C is lowered by 1 degree, its pressure
A) decreases by 1/273.
B) decreases by 100/273.
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D) increases by 100/273.
Q:
Which of these is the smallest?
A) 1 Celsius degree
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Distinguish between the concepts of thermal energy, temperature, and heat.
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B) warmed.
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If water at 0C slightly increases in temperature, the water
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If water at 20C slightly increases in temperature, the water
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Q:
A kg of 40C water and a kg of 20C water, after being mixed, have a temperature of 30C. However, the final temperature of a 1-kg iron block at 40C placed into 1 kg of water at 20C is
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Q:
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A) becomes more ordered.
B) becomes less ordered.
C) reaches equilibrium.
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Q:
When work is done by a system and heat is subtracted, the temperature of the system
A) increases.
B) decreases.
C) remains unchanged.
Q:
Which law of thermodynamics addresses the direction of heat flow?
A) First law
B) Second law
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D) all of the above
Q:
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A) First law
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Q:
At some point between Earth and the Moon, the forces due to gravity on a space traveler would be the same when this point is
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Q:
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B) more the gravitational force between them.
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Q:
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B) half as much.
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If Earth's mass somehow decreased with no change in its radius, your weight would
A) decrease also.
B) increase.
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Q:
Newton discovered
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C) neither of these
Q:
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B) rise and fall back to Earth's surface.
C) follow an uncertain path.
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