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Six protons are found in the nucleus of:
(1) Boron
(2) Lithium
(3) Carbon
(4 )Helium
Ans: Carbon
Chemistry, Academics
A 1.000 g sample of copper metal is heated in a crucible and after 15 minutes themass of the crucible contents is 1.111 g. Calculate the mass of copper (II) oxide that was produced.
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