GT Chemistry Obj: Students will be able to use chemical formulas in order to construct chemical equations. Drill:What did you have for breakfast? Do you think chemistry was needed for any of the parts of that breakfast?

SAT Enrichment: g of NH3 gas is stored at STP. The volume of the gas at those conditions is…. a liters b liters c liters d liters e.3933 liters

PHOTOSYNTHESIS CO 2 + H 2 O → C 6 H 12 O 6 + O 2 6CO 2 + 6H 2 O → C 6 H 12 O 6 + 6O 2

Chemical Equations K (s) + H 2 O (l) → KOH (aq) + H 2(g) s – solid l – liquid (pure) g – gas aq – aqueous (dissolved in H 2 O) reactantsproducts Yields/Produces

Everyday Equations Write the chemical equation for the following reaction of a lit sparkler –Solid magnesium reacts with gaseous oxygen to yield magnesium oxide Mg + O 2 → MgO

Everyday Equations The following is the reaction that takes place in the stomach of a person that takes Tums for a belly ache. HCl (aq) + CaCO 3(s) → H 2 O (l) + CO 2(g) + CaCl 2(aq) Write this using words Aqueous hydrochloric acid reacts with calcium carbonate to yield liquid water, gaseous carbon dioxide, and aqueous calcium chloride.

Everyday Equations Write the equation for the reaction that takes place when lighting a gas grill –Propane (C 3 H 8 ) reacts with oxygen in the air to produce gaseous carbon dioxide and liquid water C 3 H 8 + O 2 → CO 2 + H 2 O

Everyday Equations The following is the reaction that take place when iron rusts Fe (s) + O 2(g) → Fe 2 O 3(s) Write this equation using words. Solid iron reacts with oxygen in the air to produce iron(III)oxide

Class Work Writing Chemical Reactions and Deciphering Chemical Reactions.

Summary Did we accomplish the objective? Explain. What is a chemical reaction? Identify the components needed to write a chemical reaction. What type of chemical reaction do you think you ate this morning for breakfast?

Homework Instructional Fair Page 59 –Word Equations Exit ticket Complete and place in the bin!