A student conducting a calorimetry investigation determines a negative ∆H. What does the negative value indicate about the reaction? A. The reaction synthesized a single product.

B. The reaction was exothermic.

C. The reaction absorbed energy.

D. The reaction involved decomposition.

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)

c) should be the answer.

the answer is 0.42 is that is an option. this question provides no info