How Many Joules are removed when 83.5 grams of steam cools from 200.0C to -35.0C? Five step problem- don't forget to add up the answers to get the total energy!

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous