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When a trumpet was played, a nearby sheet of paper began to move. What caused the paper to move? *
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Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?
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Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
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Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?
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When a trumpet was played, a nearby sheet of paper began to move.
What caused the paper to move? *...
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