How much heat, in kilojoules, must be added to a 5.00 × 102 g iron skillet to increase its temperature from 25°C to 250 °C? The specific heat of iron is 0.449 J/g °C.

In which situation can a mixture always be called a solution

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added