Base your answers to questions 66 through 68 on the information below.
in the early 1800s, joh...
Chemistry, 20.08.2019 10:50, LiliGrey4335
Base your answers to questions 66 through 68 on the information below.
in the early 1800s, john dalton proposed an atomic theory that was based on experimental observations made by several scientists. three concepts of dalton’s atomic theory are stated below.
statement a: atoms are indivisible and cannot be destroyed or broken down into smaller parts.
statement b: atoms of one element cannot be changed into atoms of another element.
statement c: all atoms of one element have the same mass.
explain, in terms of particles, why statement a is no longer accepted.
Answers: 1
Chemistry, 21.06.2019 21:00, 5041
Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?
Answers: 1
Chemistry, 22.06.2019 18:00, AdoNice
Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology
Answers: 2
Chemistry, 22.06.2019 20:00, rafaelasoareschagas7
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
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