Ernest rutherford's gold-foil experiment showed which of the following? . a. the existence of electrons in an atom. b. the existence of a dense, positively charged center in an atom. c. the existence of subatomic particles with no charge in the nucleus. d. the existence of subatomic particles within an atom.
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Chemistry, 21.06.2019 19:10
Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.
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Chemistry, 22.06.2019 19:40
Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory
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Chemistry, 23.06.2019 02:00
As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave
Answers: 2
Ernest rutherford's gold-foil experiment showed which of the following? . a. the existence of elect...
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