Na+ ion in sodium chloride is attracted to the oxygen side of the water molecules, while the Cl- ion is attracted to the hydrogens' side of the water molecule
this causes the sodium chloride to split in water, and the sodium chloride dissolves into separate Na+ and Cl- atoms
Petroleum Products
Petroleum and its products are mainly composed of carbon polymers (chains), as the backbone, with different structural and functional groups. Plastic, for example, is made of polypropylene and polybutylene which is mainly made of carbon atoms, whose monomers are linked in a chain to form polymers that make up the products.
Synthetic rubber on the other hand is made of copolymers of carbon and other addictives such as styrene. Synthetic fiber is made of nylon that is composed of a copolymer between carboxylic acid and amides.
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(D) Nonpoint source pollution is difficult to regulate, because its source is difficult to track.
A. the runner's muscles have accumulated lactic acid.. I think. 99% sure