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Chemistry, 22.06.2019 03:00
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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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Chemistry, 22.06.2019 08:00
What are the similarities of physical and chemical change ?
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Determine the limiting and excess reactant if 100 g of calcium carbonate and 45 g of iron (iii) phos...
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