What must be true of a disproportionate substance? It is composed of oxygen.
It is both a reactant and a product.
It has an oxidation number of
It gains and loses electrons.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

what is the question?

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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

diaria maybe go see a doctor about that