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copper has two naturally occurring

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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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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According to the Venn diagram, which of the following is the main difference between rocks and minerals?Minerals are not
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2. asked by Sunshine124
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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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Which of the following is the correct definition of minerals?a. a naturally occurring, inorganic solid that forms through
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2. asked by PLS HELPPP
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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 Jill
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Use the information about two substances to answer the question.Substance A: organic, naturally occurring, solid Substance B:
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2. asked by kitkat
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Use the information about two substances to answer the question.Substance A: organic, naturally occurring, solid Substance B:
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