4720 kj of energy are supplied to a material in order to raise its temperature by 65k. if the specific heat capacity of the material is 2730 j kg-1 k-1 then what is its mass?

How many liters of water vapor can be produced if 108 grams of methane gas (ch4) are combusted at 312 k and 0.98 atm? show all work. pls ! will mark as brainliest

Displacement is the slope of a velocity vs. time graph a. true b. false

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.