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Chemistry, 21.06.2019 18:00
Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water
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Chemistry, 22.06.2019 03:30
Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?
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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 08:00
What are the similarities of physical and chemical change ?
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If 28 grams of N reacts completely with 12 grams of H2, then how many grams of NH6 will you end up w...
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