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Transcript of Chemical Equations
Number of elements or compounds reacting is an indicator
Combine to make a single product, or make two new compounds:
Chapter 11: Chemical Equations
Types of Reactions
Formulas of reactants to the left
Products to the right
Plus signs in between
For word, oxidation state
Yield sign separating
Determine the correct formulas
Form skeleton equation (unbalanced)
Ex. 1 Chemical:
Fe + O2 -> Fe2O3
Ex. 2 Word:
Iron + Oxygen -> Iron (III) Oxide
(s) = solid state
(l) = liquid state
(g) = gaseous state
(aq) = aqueous, a substance dissolved in water
= yield sign
A substance that increases the rate of reaction by lowering the activation energy barrier; the catalyst is not used up in the reaction
Heat and Platinum are above sign to show catalyst
Find number of atoms of each element
Count a polyatomic ion as a single unit
Balance the elements one at a time using coefficients
Make sure both sides are equal
Fe + O2 Fe2O3
4Fe + 3O2 2Fe2O3
K+ H O ?
Use rules for solubility of ionic compounds
BY: MOLLY, KENDRA, LAUREN
Sibert, Gwen. "Catalysts." Notes on Kinetics. N.p., n.d. Web. 11 June 2013. <http://www.files.chem.vt.edu/RVGS/ACT/notes/catalysts.html>.
Wilbraham, Antony C., et al. "Chapter 11: Chemical Reactions." Chemistry. N.p.: Pearson Education, 2008. 320-50. Print.
2N O ----> 2N + O