Define what coal is, explain how it forms, and what it is
used for today...
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Chemistry, 22.06.2019 04:30
How much energy is made when a pice of wood burns. how do you know
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Chemistry, 22.06.2019 06:30
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
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Chemistry, 22.06.2019 14:00
How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?
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Chemistry, 22.06.2019 23:20
In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as
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