Payment of Enlistment Bonuses. If you're paid an enlistment bonus for a specific Marine Corps MOS, you must serve in that MOS for your entire agreed-upon term of enlistment. Typically, Marine Corps enlistment bonuses are paid as partial lump sums with the remainder paid in installments.
Soaps and detergents clean by way of chemical reactions. Soap emulsifies grime, which means oily stains bind to the soap so they can be lifted away with water. Detergents act as surfactants, lowering the surface tension of water so it can interact with oils, isolate them, and rinse them away.
Doing chemical reactions is the main focus of chemistry because that's where the action is. That's when something gets made, changed, or destroyed. So a lot of emphasis is placed on chemical reactions. Chemical reactions can be understood by these three areas of focus. A reaction is basically shuffling around the building blocks of chemistry (atoms/ions/molecules/electrons). Force & energy is what decides if the reaction occurs and how fast.