Chalcocite is an ore from which copper can be extracted for commercial use. the formula for this important ore is cu2s. in the laboratory it is formed by the following reaction: 2cu s → cu2s the reaction takes place in laboratory conditions that allow the reactant atoms to move freely about in the reaction vessel. explain this reaction in terms of collision theory.

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.

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(jacemorris04)