Chemistry, 09.08.2019 09:10 robert7248
Answer plz questions 1 & 2 refer to this experiment:
suzie q wants to know how different colors of light effect the growth of plants.
she believes that plants can survive the best in white light. she buys 5 ferns of the
same species, which are all approximately the same age and height. she places
one in white light, one in blue light, one in green light, one in red light and one in
the closet. all of the ferns are planted in miracle-grow and given 20 ml of water
once a day for 2 weeks. after the two weeks, suzie observes the plants and
measurements.
1. what is the independent variable?
2. what is the dependent variable?
Answers: 3
Chemistry, 21.06.2019 15:40
What is the total reduction potential of a cell in which potassium (k) is reduced and copper (cu) is oxidized? a. 2.59 v b. 3.27 v c. -3.27 v d.-2.59 v
Answers: 1
Chemistry, 21.06.2019 16:00
Silica, sio2, is formed on silicon as an electrically insulating layer for microelectronic devices. silica is formed when silicon is exposed to o2 gas at an elevated temperature. at 900˚c, it takes 90 minutes for the oxygen to diffuse from the surface to form a 0.06 micron (0.06 x 10-6 m) thick layer of sio2 on
Answers: 1
Chemistry, 22.06.2019 23:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
Chemistry, 23.06.2019 00:30
Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element
Answers: 1
Answer plz questions 1 & 2 refer to this experiment:
suzie q wants to know how different...
suzie q wants to know how different...
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