8. if i have 34 grams of feo, how many grams of oxygen were synthesized?
fe + o2 → feo...
Chemistry, 03.12.2019 04:31 zanaplen27
8. if i have 34 grams of feo, how many grams of oxygen were synthesized?
fe + o2 → feo
Answers: 1
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Fission of uranium-235 products energy and a. isotopes of smaller elements b. isotopes of larger elements c. lighter isotopes of uranium d. heavier isotopes of uranium
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Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial
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Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange
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Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?
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