Asked by Zanele

What is the relative atomic mass of naturally occuring copper to four decimal places when you are given 69,09% of copper-63 with a relative atomic mass of 62,9298 with 30,91% of copper-65, with a relative atomic mass of 64,9278?

12 years ago

Answered by Zanele

I need your help guyz plz!

12 years ago

Answered by DrBob222

0.6906(mass) + 0.3091(mass) = avg mass.

12 years ago

Answered by Michelle

Help guys

4 years ago

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Asked by Zanele

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