CHAPTER 3 Matter – Properties and Changes. Organizing & Describing Matter Substances – matter that has a uniform and unchanging composition (pure substance)
Chapter 15 Chemical Reactions. Section 1: Forming New Substances Chemical reaction – the process by which one or more substances undergo change to produce.
Chapter 7 Chemical Reactions. Objectives Explain what a chemical reaction is Describe indications of chemical reactions Use state symbols in reactions.
