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Question
What would be the best explanation for the fact that most natural water has a pH of about 5.6?A) Carbon dioxide reacts with water to form an acid.
B) Air contains acid rain particles.
C) Minerals that are dissolved in water are often acidic.
D) Many salts that dissolve in natural waters make the water basic.
E) none of the above
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Heat energy is measured in units of
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B) joules.
C) 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
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B) decreases by 100/273.
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Which of these is the smallest?
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Distinguish between the concepts of thermal energy, temperature, and heat.
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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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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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When work is done by a system and heat is subtracted, the temperature of the system
A) increases.
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Which law of thermodynamics addresses the direction of heat flow?
A) First law
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Q:
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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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Newton discovered
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