Chemistry, 03.01.2020 06:31 lukeakalucas
1. emitted from a cathode ray tube electrons 2. discovered the neutron nucleus 3. discovered the electron dalton 4. postulated the quantum atom j. j. thomson 5. discovered the proton bohr 6. father of atomic theory rutherford 7. location of most of the mass of the atom chadwick
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Chemistry, 22.06.2019 07:00
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
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The identities of substances are the same before and after which type of change
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Which of the following would have the lowest average kinetic energy
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