When chlorine reacts with potassium bromide, chlorine displaces bromine. Cl2 + 2 KBr → Bra + 2 KCI
Explain why chlorine is more reactive than bromine.

Chlorine is more reactive than bromine because the chlorine atom has fewer shells and the electronic bonding is much stronger. The electrons are closer to the nucleus, therefore it is easier for chlorine to attract and hold electrons in its outer shell forming stronger bonds with other atoms.

(As you go down Group 7/the Halogens - they get less reactive)

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)

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