Chemistry, 11.06.2021 02:00 danieldfuenteg732
Passage: Joseph notices that a certain water weed in his aquarium, called Elodea, made bubbles of oxygen when he turned on the
light in the aquarium cover. He set up an experiment to see if changing the color of the light bulb in his aquarium affected the number of
bubbles produced by the weed.
Question: Which variable would Joe want to keep controlled (keep the same) in order to insure a fair test in his experiment?
the type of water weed
the wattage of the light bulb
the time he had the light bulb turned on
all of the above
Answers: 3
Chemistry, 22.06.2019 08:30
If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?
Answers: 2
Chemistry, 22.06.2019 12:30
Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d
Answers: 1
Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
Answers: 1
Chemistry, 22.06.2019 21:50
28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action
Answers: 1
Passage: Joseph notices that a certain water weed in his aquarium, called Elodea, made bubbles of ox...
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