Chemistry, 09.09.2019 03:10 Ashley606hernandez
Aplant extract can be obtained with organic solvents such as acetone or ethyl alcohol and is composed of plant pigments such as chlorophyll a and b carotene and xanthophylls.
write a brief explanation about why a plant extract is a mixture, whether it is homogeneous or heterogeneous and how it can be separated.
Answers: 3
Chemistry, 22.06.2019 12:10
If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?
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Chemistry, 22.06.2019 12:20
Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.
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Chemistry, 23.06.2019 01:00
The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide
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Aplant extract can be obtained with organic solvents such as acetone or ethyl alcohol and is compose...
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