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The element copper has naturally

Naturally occurring copper contains a mixture of 69.09% copper-63 (63.9298 amu) and 30.91% copper-65 (64.9278 amu). What is the
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2. asked by ashley
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The element copper has naturally occuring isotopes with mass numbers of 63 and 65. The relative abundance atomic masses are
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2. asked by henry
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Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and relative abundance of 69.17%. Use the atomic
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2. asked by NEED HELP
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The two naturally occurring isotopes of copper 63Cu &64Cu have masses 62.2996amu&64.9278 amu respectively. The atomic mass of
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22. The two naturally occurring isotopes of copper 63Cu &64Cu have masses 62.2996amu&64.9278 amu respectively. The atomic mass
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Naturally occurring copper is a mixture of two isotopes. One of these has 34 neutrons the other has 36. If the relative atomic
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2. asked by Rose
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A copper pan is made by a person. Is the pan synthetic?No, it is not synthetic because copper is not recyclable. No, it is not
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2. asked by help
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A copper pan is made by a person. Is the pan synthetic?(1 point)Responses No, it is not synthetic because copper is an element
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2. asked by optional
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A copper pan is made by a person. Is the pan synthetic?(1 point)Responses No, it is not synthetic because copper is an element
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Copper can be found in it's element form however, it is usually mined from its ores, such as chalcopyrite or chalcocite or
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2. asked by Jah Jah
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