This is a attachment from my text book can you help me
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One or more substances changing into one or more substances is an example of a
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Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
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How is the atomic number of a nucleus changed by alpha decay
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