How should you change this image to represent an ionic bond between sodium and fluorine?
a) move 7 electrons from fluorine to sodium.
b) move one electron from fluorine to sodium.
c) move one electron from sodium to fluorine.
d) nothing. the image already represents an ionic bond.

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The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

State one important difference between a physical change and a chemical change?