Chemistry, 05.11.2020 23:00 robbinsjeffrey271
Which of the following is NOT a reason that compounds are considered pure substances?
Group of answer choices
They can be separated by physical methods
they are composed of only one type of particle
different samples of any compound have the same elements in the same proportion
the particles are made of atoms of two or more elements that are chemically combined
Answers: 1
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How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:
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Which of the following electromagnetic waves can create ions?
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Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
Answers: 2
Which of the following is NOT a reason that compounds are considered pure substances?
Group of answ...
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