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Copy of Honor's Separation of Mixtures & Early Ideas About Matter (10/15/2024)

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Last updated 11 months ago
9 questions
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Question 1
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Question 2
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Question 3
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Question 4
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Question 9
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Compare and contrast Thomson's "Plum Pudding" atomic model with Rutherford's "nuclear" atomic model.

Which method of separation would be ideal for a mixture of water and sand?
Filtration
Evaporation
Distillation
Chromatography
Which method is used to separate dyes in ink?
Evaporation
Distillation
Chromatography
Filtration
What separation method would be most effective in separating ethanol from a solution of ethanol and water?
Distillation
Evaporation
Filtration
Chromatography
Pair the atomic structure with the appropriate description
Electrons
The dense center of the atom
Neutrons
Negatively charged particles around the nucleus
Nucleus
Positively charged particles in the nucleus
Protons
Neutral particles in the nucleus
Match the scientist to the correct idea or experiment about atomic structure they contributed
Niels Bohr
Discovered the nucleus using his gold-foil experiment
J.J. Thomson
Proposed that electrons orbit the nucleus in specific layers
Ernest Rutherford
Identified the electron, leading to the 'plum pudding' model
John Dalton, in his atomic theory, proposed that atoms can be destroyed in chemical reactions.
True
False
Ernest Rutherford's gold foil experiment proved that an atom is mostly empty space with a dense center, now known as the nucleus.
True
False
J.J. Thomson is credited for the discovery of the electron through his cathode ray experiments.
True
False