Which of the following would be a good definition for energy?
A. Something you hold in your hand.
B. Saving energy through using your
bicycle.
C. measure of a substance's ability to do
work (make something move) or
cause a change in matter
B. spinning top on a table.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl