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When the earth was formed and cooled, why did nickel and iron end up in the center of the earth while basalt and granite ended up in the outer layers
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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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How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate
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What is the perecentage yield of a reaction in which 200g PCl3 reacts with excess water to form 128g...
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