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Chemistry, 22.06.2019 05:30
Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change
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Chemistry, 23.06.2019 10:30
How is it possible for someone to put an ear to a wall and hear someone in the next room? a.sound waves can travel though solids. b.the waves travel from room to room via air. c.there must be some air in the wall so the sound can travel through it. d.sound waves change to electromagnetic waves and then back again.
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Chemistry, 23.06.2019 16:00
Express your answer using two significant figures. 1.7 km^2
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Chemistry, 23.06.2019 19:10
Adna specialist is determining the probability of a random match using codis str markers vwhat amount of str markers dna specialist is determining the probability of a random match using would give the best probability of a match? a. 2 b. 5 c. 10 d. 15
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