Chemistry, 26.06.2020 15:01 joshlynn52
Which labels best complete the flow chart? X: Producers undergo photosynthesis. Y: Nitrogen compounds are released into the air. X: Nitrogen compounds are released into the air. Y: Producers undergo photosynthesis. X: Free nitrogen is in the atmosphere. Y: Producers absorb nitrogen compounds through their roots. X: Producers absorb nitrogen compounds through their roots. Y: Free nitrogen is in the atmosphere.
Answers: 3
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According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc
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Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
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Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.
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Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium
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Which labels best complete the flow chart? X: Producers undergo photosynthesis. Y: Nitrogen compound...
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