Your lab partner accidentally measures out too much of a substance in the lab. when the experiment is complete, you have leftover chemicals. what should you do with these leftover chemicals

pure substance: iron,copper

impure substance: water,charcoal

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)

a electronegativity decreases beacuse the size of nucleus is bigger.