Barack Hussein Obama II was born on August 4, 1961, in Honolulu, Hawaii. His mother, Ann Dunham, was born on an Army base in Wichita, Kansas, during World War II. After the Japanese attack on Pearl Harbor, Dunham's father, Stanley, enlisted in the military and marched across Europe in General George Patton's army.
Best Answer: It refers to the heat change fora reaction. Means that the reaction absorbs heat from and emits heat to the environment. A delta H rxn with a positive sign means that heat is taken from the environment.Such a reaction is termed as an endothermic reaction. A delta H rxn with a negative sign means that heat is emitted or given to the environment.Such a reaction is termed as an exothermic reaction.
For amphetamines, most incidents of false positives can be related to a drugâs structure, but case reports and retrospective reviews have associated many drugs with false positives. Following a positive drug screening, the possibility of a false positive always should be considered. Upon admission, the patientâs routine immunoassay for amphetamines showed a negative result, but after 3 days, a repeat analysis was positive for amphetamine. A confirmatory test was ordered and identified IV phenylephrine as a likely cause of the false positive.