Chemistry, 31.03.2021 20:50 maleyjustinr
at astronomical observatories capture this light even better, providing a clearer picture of our galaxy.
waves are the only waves, besides visible light, to reach Earth's surface.
telescopes can reveal the existence of pulsars in space.
measure the temperature variations in the universe.
waves show the heat emitted by celestial bodies.
rays are used to study hot stars.
rays can detect the presence of interstellar gas clouds.
rays show areas where large quantities of energy are released.
Answers: 2
Chemistry, 22.06.2019 02:10
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)
Answers: 3
Chemistry, 22.06.2019 14:00
How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene
Answers: 2
Chemistry, 22.06.2019 15:30
Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.
Answers: 2
at astronomical observatories capture this light even better, providing a clearer picture of our gal...
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