Chemistry, 03.07.2021 01:50 cassandramanuel
Explain why caffeine can be extracted from the tea leaves into hot water and how you extracted the aqueous solution and isolated the crude caffeine.
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Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.
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How can you use chemical equations to predict the products of the reaction you can carry out?
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What forms when chemical reactions combine pollution with sunlight?
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Chemistry, 22.06.2019 13:30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
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Explain why caffeine can be extracted from the tea leaves into hot water and how you extracted the a...
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