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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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Joan writes four numbers on the board in standard form, and then she writes their scientific notation
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How have the greenhouse gasses increased from the year 2000 to 2018
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Mathematics, 11.06.2020 00:57
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