Astudent set up an experiment to show that carbon dioxide is produced by elodea plants during photosynthesis. she filled two test tubes with distilled water and placed a piece of elodea in each of the tubes. she added a drop of phenol red, which turns red in a basic solution and yellow in an acidic solution. she blew in each tube to add carbon dioxide, which caused the distilled water to become more acidic so the phenol red turned yellow. she wrapped tube a in aluminum foil and left tube b exposed to the light. after 15 minutes, what should she expect to observe?
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Chemistry, 22.06.2019 06:00
How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar
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If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?
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In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.
Answers: 1
Astudent set up an experiment to show that carbon dioxide is produced by elodea plants during photos...
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