Polyatomic ions Poly = Many Atomic = having to do with atoms ions = having a charge + or – How do more than one atom come together?
Indicators of a chemical reaction- Color change Producing a gas Heat/light energy released Formation of a precipitate.
Stoichiometry Calculations based on a balanced chemical equation Chapter 9 (12)
8 th Grade Science Adapted by T. Trimpe //sciencespot.net/ .
Chemical equation - Describes a chemical change. Parts of an equation: 2Ag + H 2 SAg 2 S + H 2 ReactantProduct Reaction symbol.
Chapter 6: Chemical Reactions. Chemical Equation represents a chemical change or reaction Reactants Products Reactants – chemicals before the reaction.
CHEMISTRY November 10, 2011. Brain Teaser Identify the type of reaction: H 2 + O 2 H 2 O CaSO 4 + KOH Ca(OH) 2 + K 2 SO 4 KClO 3 KCl + O.
Unit 6 Mole and Stioch.. Unit 6 Starts Tues: Panther Drill Review Problem 5-10 min Review Quiz Early Finish = Word Search.
Chemical Reactions. What is a chemical reaction? A chemical equation uses symbols to represent what happens at the atomic level. What happens when.
FTCE Chemistry SAE Preparation Course Session 4 Lisa Baig Instructor.
Chemical reaction chemical equation. The chemical transformation of one substance to another is called a chemical reaction and is written using chemical.