Marine Corps Physical Fitness Test. Fitness is essential to the day-to-day effectiveness and combat readiness of the Marine Corps. The Marine Corps considers physical fitness an indispensable aspect of leadership.
A: Chemical energy is for producing heat in the human body to sustain vital functions, converting solar energy in plants through photosynthesis, producing electrical energy in batteries to power devices and burning fossil fuels in combustion engines to produce heat or motion.
Chemical energy is a form of potential energy that can be stored in the bonds of chemical compounds. As soon as a chemical reaction takes place, the bonds among molecules break and release or absorb this energy, usually in the form of heat.If a reaction releases heat, it is exothermic. Batteries use chemical energy and convert it to electrical energy to power electric devices, motors, etc. 2  This is achieved through the interaction of specific chemical compounds in order to convert chemical energy to electrical energy. 3  The most common type of battery is the zinc-copper battery.