3. Atomic theory, which describes the atoms that make up matter, has been 1 point
explored for centuries. Scientists in ancient Greece first proposed that
matter was made of units called atoms. For many years, scientists thought
atoms were solid and could not be divided. Then, in the nineteenth century,
scientists began to discover the particles that make up atoms. Modern
techniques have allowed scientists to split atoms into increasingly smaller
particles. Which of the following statements about theories is supported
by the history of the atomic theory?*
a. If new evidence contradicts earlier theories, it is a result of an experimental error.
b. Experiments with modern equipment cannot be used to support earlier theories.
c. A theory is discarded when new evidence contradicts a part of the theory.
O d. Theories can change in response to new evidence.
Answers: 3
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Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.
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Chemistry, 22.06.2019 09:20
What will most likely happen when two bromine atoms bond together?
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Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d
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Chemistry, 22.06.2019 16:10
Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.
Answers: 1
3. Atomic theory, which describes the atoms that make up matter, has been 1 point
explored for cen...
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