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Which source is most likely an authority on the subject
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Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
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‘which reaction would most likely require the use of an inert electrode?
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How might this scientific phenomena be explained? a paper clip floats on water.
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Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning
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Which source is most likely an authority on the subject...
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