HELP ME PLEEASSEE ILL MARK U THE BRAINLIEST

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.