El agua oxigenada se descompone rápidamente en agua y oxígeno cuando se le agrega una peueña cantidad de dióxido de manganeso, que no se altera durante la reacción y se recupera totalmente al finalizar la misma ¿Cómo se comporta el dióxido de manganeso en esta reacción?

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.