If 1 Mol of Oxygen-16 Were Formed from Protons and Neutrons,0.1366

question 18

Multiple Choice

If 1 mol of oxygen-16 were formed from protons and neutrons,0.1366 g of mass would be lost.What can best account for this loss?

• A)Converting from the atomic scale (in atomic mass units)to the macroscopic scale (in grams)can often cause minor errors to occur.
• B)The process was so exothermic that the system lost energy,which means that it also lost mass.
• C)This is impossible because of the law of conservation of matter (so mass must be conserved).
• D)When fission occurs,the nuclei remaining always have a smaller mass.
• E)Both a and c are correct.

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