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Chemistry, 22.06.2019 06:30
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 08:30
Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.
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Chemistry, 23.06.2019 09:00
Avogradoa number was calculated by determining the number of atoms in?
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Chemistry, 23.06.2019 10:00
How many grams of cupric sulfate pentahydrate are needed to prepare 50.00 ml of 0.0800m cuso4× 5h2o?
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Are phase changes physical or chemical changes? why?...
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