20 ml of 80°c water is mixed with 20 ml of 0°c water in a perfect calorimeter. what is the final temperature?

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

How many miles of water are produced if 5.43 mol pbo2 are consumed

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.