Plsss help ive been stuck on this for a week
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Answers: 3
Chemistry, 23.06.2019 10:30
4al + 3o2 β 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.
Answers: 2
Chemistry, 23.06.2019 13:30
Which correctly identifies the parts of a transverse wave? a: crest b: amplitude c: wavelength d: trough a: trough b: amplitude c: crest d: wavelength a: trough b: amplitude c: wavelength d: crest a: crest b: amplitude c: trough d: wavelength
Answers: 1
Chemistry, 23.06.2019 22:00
Athermometer is removed from a room where the temperature is 70Β° f and is taken outside, where the air temperature is 30Β° f. after one-half minute the thermometer reads 50Β° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.)
Answers: 3
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