HON CHEMISTRY: More review today on states of matter and chemical properties and chemical changes. Can you determine if a chemical change has occurred? And what about energy? How is that important in chemical changes?
God bless you as you memorize the symbols of the elements (complete list on your syllabus), as well as the atomic numbers and mass numbers for elements 1 – 30. Actively work to memorize them!!
Hon Chemistry 9-24-16 Chemical Changes & Conservation of Mass from Tammy Skinner on Vimeo.