Which statement is a description of a chemical reaction? • A solid is dropped into a beaker of liquid and a gas is released.
• Two liquids are mixed in a beaker and a solid form at the bottom of the beaker.
A solid is dropped into a beaker of liquid and an explosion occurs.

air quality

poor drinking water

and heavy polution

can lead to poor health

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)