Chemistry, 08.08.2019 05:10 Cheyenneross366
Calculate ahl for the following reaction: 8 al(s) + 3 fe3o4(s) -4 al203(s) +9 fe(s) if the heat of formation for fe304 is -1120.9 kj/mol.
Answers: 1
Chemistry, 22.06.2019 21:00
Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.
Answers: 1
Chemistry, 23.06.2019 03:30
Why do electrons further from the nucleus have more energy
Answers: 1
Chemistry, 23.06.2019 13:30
Malik formed a hypothesis that an increase in atmospheric oxygen levels by 10% would cause red-legged grasshoppers to grow larger than normal. suppose that malik performs an experiment to test his hypothesis. which of these actions would represent a scientific mistake in his experiment? a. he experiments on live grasshoppers instead of preserved ones. b. he focuses on red-legged grasshoppers instead of all kinds of grasshoppers. c. he varies the nitrogen and carbon dioxide levels in the air from one trial to the next. d. he conducts the experiment in a controlled lab setting with a lab partner. e. he measures the mass and length of his specimens at the start of each trial.
Answers: 1
Calculate ahl for the following reaction: 8 al(s) + 3 fe3o4(s) -4 al203(s) +9 fe(s) if the heat of...
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