Energy in the amount of 420 J is added to a 35g sample of water at a temperature of 10.0⁰C. The specific heat of water is 4.18 J/g*K. What is the final temperature of the water in Kelvins?

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.