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.
When an Rh negative mother is carrying an Rh positive baby, some of the Rh positive blood from the baby gets into the Rh negative blood of the mother. This Rh positive blood from the baby acts like a foreign substance to the mother.n pregnancy, Rh is especially important when an Rh negative woman carries an Rh positive child. Remember, when a woman is Rh negative, it means she does not have the Rh factor. In the normal course of pregnancy, small amounts of the baby's blood get into the mother's bloodstream.