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Is burning paper a physical change or a chemical change? How do you know? a
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What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5
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Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?
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Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?
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Is burning paper a physical change or a chemical change? How do you know? a...
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