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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:
• 175.6 g of NH3 gas is stored at STP. The volume of the gas at those conditions is….
a. 10.32 litersb. 22.40 litersc. 175.6 litersd. 231.4 literse. 3933 liters
PHOTOSYNTHESIS
CO2 + H2O → C6H12O6 + O2
6CO2 + 6H2O → C6H12O6 + 6O2
Chemical Equations
• K(s) + H2O(l) → KOH(aq) + H2(g)
s – solidl – liquid (pure)g – gas
aq – aqueous (dissolved in H2O)
reactants productsYields/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 + O2 → 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) + CaCO3(s) → H2O(l) + CO2(g) + CaCl2(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 (C3H8) reacts with oxygen in
the air to produce gaseous carbon dioxide and liquid water
C3H8 + O2 → CO2 + H2O
Everyday Equations
• The following is the reaction that take place when iron rustsFe(s) + O2(g) → Fe2O3(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 ticketComplete and place in the bin!