An unknown amount of metal has a specific heat of 0.897J/g◦C and had an initial temperature of 99.5◦C. It was dropped in 52.0 ml of water with an initial temperature of 15.0◦C and had a final temperature of 37.0◦C. What is the mass amount of the metal?

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.