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Double Replacement Prediction. Agenda Review – white boards Check homework Notes – DR prediction Guided practice Homework. Draw the flow chart for types. Describe Redox Rxns. Predict products of combustion. Predict products of Decomp. Predict Products of SR.
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Double Replacement Prediction Agenda • Review – white boards • Check homework • Notes – DR prediction • Guided practice • Homework
RP Mixed 4 Explain what went wrong! • B:2.9.6.6 O:C,R:O • C:1.1.2 not redox • D:2.3.2 O:O,R:Cl • D:2.1.3 O:N,R:H • SR:1.2.2.1 O:Br,R:F • B:2.7.6.6 O:C,R:O • C:1.1.1 not redox • SR:1.1.1.1 O:Zn,R:H • B:2.9.6.8 O:C,R:O • SR:NR • SR:NR • D:2.2.1 O:O,R:Pb • C:NR Explain why some reactions are No Reaction!
Identification from Reactants • Two compounds • Note if both anions are the same (oxide), then it is probably a combination reaction! • Don’t let me trick ya!!!
Prediction of Products • Switch the anions • Or cations if you prefer • Outsides together and insides together • Like FOIL!
Iron (III) hydroxide + phosphorous acid • Fe(OH)3 + H3PO3g FePO3 + 3 HOH
DEMO Ammonium nitrate and barium hydroxide • NH4NO3 + Ba(OH)2g NH4OH + Ba(NO3)2
Aluminum sulfide + hydrochloric acid • Al2S3 + 6HCl g 2AlCl3 + 3H2S
DEMO Acetic acid and sodium bicarbonate. • HC2H3O2 + NaHCO3g H2CO3 + NaC2H3O2
Homework Time • Complete reaction prediction I • ID rxn type FIRST • Then LOOK at those notes to help you predict the products. • Balance Charges • Balance the Reaction