Compounds that have the same molecular formula but different chemical structures are called isomers. Remember isomerism is a property between a pair (or more) of molecules, i.e. a molecule is an isomer of another molecule. A similar relationship is that of brother or sister...
Many Americans are up in arms. But in fact, keeping out desperate souls seeking entry into America has deep roots. On this day 100 years ago, the United States passed the strictest immigration law of its time: the Immigration Act of 1917. The law restricted the immigration of undesirables, including many people from the Middle East and Asia, through increased taxes, tests and outright bans.
WASHINGTON -- The Senate passed a politically fraught immigration reform bill on Thursday that would give a path to citizenship to some of the estimated 11 million undocumented immigrants living in the U.S., bringing them out of the shadows and preventing continued record deportations that have separated hundreds of thousands of families.