Why is there is a negative dipole on the chlorine but a positive dipole on the nitrogen? Is the molecule polar ?

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.

Draw the lewis dot structure for each of the following polyatomic ions

Match each statement with the state of matter it describes