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What is the functional group of propanal?...
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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 grams of mgbr2 are needed to produce 75g or metal?
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Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule
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