Which chemical formula contains 18 atoms of oxygen? 18 Al(OH)3
5 Cr(CO3)2
6 Ca(NO3)2
6 Al(OH)3

post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and colour.

explanation:

not: both offer magnification to the atomic level.