When a substance is boiled, what happens to the mass?

a. the mass increases as it changes from a liquid to a gas
b. the mass stays constant from a liquid to a solid
c. there is no mass once the substance becomes a gas
d. the mass decreases as it changes from a liquid to a gas

C there is no mass change once the substance becomes a gas

Explanation: the substance disperses and becomes more active but does not gain mass.

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)

b) nuclear ive learned that in a pedtrodic table