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.
- If a blood type has Rh protein, then it is positive. - If a blood type does not have Rh protein, then it is negative. - For example, blood type B negative means that the person has type B without Rh protein on the surface of the red blood cells.The RH factor is more important if the mother is to have a second child. If a blood type does not have Rh protein, then it is negative. - For example, blood type B negative means that the person has type B without Rh protein on the surface of the red blood cells. The RH factor is more important if the mother is to have a second child.