Chemistry, 22.05.2020 15:58 milkshakegrande101
The flesh of a cut apple turns brown when left out in the air. Is this a chemical change or a physical change? Why?
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Chemistry, 20.06.2019 18:04
Two liquids are shaken together in a test tube to produce a mixture that quickly separates into two layers. which of the following best describes the behavior of the above pair of substances? soluble insoluble miscible immiscible
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Chemistry, 22.06.2019 05:30
Which other elements contain the same number of outer electrons as sodium
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Chemistry, 22.06.2019 07:00
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
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Chemistry, 22.06.2019 09:00
What is the percentage composition of carbon in the compound ch4
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The flesh of a cut apple turns brown when left out in the air. Is this a chemical change or a physic...
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