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Chemistry, 21.06.2019 17:30
Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?
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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
Chemistry, 22.06.2019 21:00
Which of the following is a physical property flammability heat of combustion solubility and toxicity
Answers: 1
Chemistry, 23.06.2019 00:10
Find the missing probability in the table below a.0.10 b.40 c.0.80 d. 0.20
Answers: 2
What is the correct formula for density?...
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