Today is Thursday, October 3 rd, 2013 Pre-Class In your notebook, write down your definition of what energy is. What does energy do? Better yet, where.
1 Stoichiometry Hein and Arena Eugene Passer Chemistry Department Bronx Community College © John Wiley and Sons, Inc. Version 1.1.
Tuesday, Oct. 15 th : “A” Day Wednesday, Oct. 16 th : “B” Day Agenda Ch 9 review: Questions/problems? Jeopardy Review Homework: Vocabulary.
Oxidation/Reduction Chapter 20. Two Types of Chemical Rxns 1.Exchange of Ions – no change in charge/oxidation numbers – Acid/Base Rxns NaOH + HCl.
1 Chapter 4 Recycling and Chemical Mathematics. 2 Nature’s Recycling – The carbon cycle.
1. elements are composed of indivisible particles-atoms. 2. atoms of the same element are alike in mass and size. 3. atoms of different elements are not.
Thursday, Sept. 26 th : “A” Day Friday, Sept. 27 th : “B” Day Agenda Homework Questions/Problems Quick Review (Practice #2c; Practice #1: c, d)
Unit 7: Chemical Equations Honors Chemistry. Evidence of a chemical reaction: A reaction has occurred if the chemical and physical properties of the reactants.
Predicting Products. Synthesis If you see 2 single elements then these elements will combine to form 1 compound. This is known as a synthesis reaction.
