Which of the following is not a physical change?
a. freezing ice
b. molding clay<...
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How have the greenhouse gasses increased from the year 2000 to 2018
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Explain what happens at the saturation point when adding salt to water at room temperature.
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Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?
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Chemistry, 22.06.2019 14:50
Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.
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