Chemistry, 15.07.2019 17:00 texaslady36
Given that the speed of light is 2.998 x 108 m/s, what is the frequency of a wave that has a wavelength of 3.55 x 10-8 meters? 10.6429 x 10-2 hz 8.445 x 1015 hz 0.8445 hz 10.6429 x 102 hz 8.445 x 1012 hz
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What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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Chemistry, 22.06.2019 14:30
Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o
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Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.
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Chemistry, 22.06.2019 20:00
The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.
Answers: 3
Given that the speed of light is 2.998 x 108 m/s, what is the frequency of a wave that has a wavelen...
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