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.
Updated : Since the passing of the Immigration and Reform Control Act (IRCA), 6 million illegal aliens have received amnesty in the United States. The IRCA Amnesty was supposed to wipe the slate clean and instead it's lead to the current situation of 12-20 million illegal aliens living in the country.mmigration and Reform Control Act (IRCA) , 1986: A blanket amnesty for some 2.7 million illegal aliens. 2. Section 245(i) Amnesty, 1994: A temporary rolling amnesty for 578,000 illegal aliens.