Chemistry, 07.07.2019 07:30 SketchWasTaken
About 75% of living matter is made up of which two essential chemicals?
Answers: 1
Chemistry, 23.06.2019 08:00
Problem page a jet airplane reaches 846. km/h on a certain flight. what distance does it cover in 13.0 min? set the math up. but don't do any of it. just leave your answer as a math expression. also, be sure your answer includes all the correct unit symbols.
Answers: 2
Chemistry, 23.06.2019 08:30
Benzonitrile (c6h5cn) is reduced to two different products depending on the reducing agent used. treatment with lithium aluminum hydride followed by water forms k, which has a molecular ion in its mass spectrum at 107 and the following ir absorptions: 3373, 3290, 3062, 2920, and 1600 cm-1. treatment with a milder reducing agent forms l, which has a molecular ion in its mass spectrum at 106 and the following ir absorptions: 3086, 2850, 2820, 2736, 1703, and 1600 cm-1. l shows fragments in its mass spectrum at m/z = 105 and 77. propose structures for k and l and choose an explanation for how this could be concluded.
Answers: 3
Chemistry, 23.06.2019 13:20
Which kind of weather usually forms over the northwest united states in the summer because of maritime polar air masses? 1 )fog 2)dry heat 3) heavy snow 4) heavy rain
Answers: 3
About 75% of living matter is made up of which two essential chemicals?...
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