Magnesium metal reacts with oxygen 2Mg +O2 → 2MgO. 2.4 g magnesium reacts with 1.6 g oxygen to produce 4.0 g magnesium oxide. Calculate the moles of reactants and product. Ar Mg = 24, Ar O = 16

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

the answer is d.) potassium