Chemistry, 29.10.2019 13:31 TylerBerk5309
By studying a star's spectrum, scientists can work out its chemical make-up and temperature. what instrument do astronomers' use to carry out this task?
a) space probe
b) spectroscope
c) radio telescope
d) light telescope
Answers: 3
Chemistry, 22.06.2019 02:50
Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.
Answers: 3
Chemistry, 22.06.2019 09:10
Which class of molecules functions as chemical signals? hormones water carbohydrates proteins
Answers: 1
Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
Answers: 1
By studying a star's spectrum, scientists can work out its chemical make-up and temperature. what in...
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