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How many neutrons does an element have if its atomic number is 48 and its mass number is 153?
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What does the symbol (–hfus) indicate in a phase change?
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Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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How many neutrons does an element have if its atomic number is 48 and its mass number is 153?...
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