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.
Known also as the Simpson-Mazzoli Act for its legislative sponsors, the Immigration Reform and Control Act (IRCA) of 1986 was passed by Congress as an attempt to control illegal immigration into the United States.The legislation passed the U.S. Senate on a 63-24 vote and the House 238-173 in October 1986.nown also as the Simpson-Mazzoli Act for its legislative sponsors, the Immigration Reform and Control Act (IRCA) of 1986 was passed by Congress as an attempt to control illegal immigration into the United States. The legislation passed the U.S. Senate on a 63-24 vote and the House 238-173 in October 1986.