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.
Trumpâs Immigration Ban: What Happens Next. The order has already been challenged on the grounds of religious discrimination. Donald Trumpâs executive order restricting immigration from certain predominantly Muslim countries set off a political chain reaction that will rumble through Washington for weeks, if not months. Three days after it was signed, the order resulted in the firing of acting U.S. Attorney General Sally Yates, who refused to defend it.