In the diagram, the arrow shows the movement of electric charges through a wire connected to a battery.

A battery with an arrow at its top running from left to right. A black line connects the right end of the battery to the left end by making a series of straight lines to form a rectangular box with the battery as part of the bottom side.
What causes the electric charges to flow from one end of the battery to the other?

a balance in electric potential
a balance in resistance
a difference in electric potential
a difference in resistance

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

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What kind of enegia produces the mixture of bicarbonate and vinegar  chemical producetion

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