hwk_solns - Solutions to the handout AM Kolchin SC1-Regents...

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Solutions to the handout AM Kolchin SC1-Regents Chemistry Balancing Equations; Predicting States (s), (g), (l), (aq) Note: Sometimes I use a two step approach with an ”intermediate” reaction having ”two aqueous products” arising from two aqueous reactants. This is not actually a reaction since on both sides of the arrow we have all the cations and anions freely moving through the water. (That is, the ”before” and ”after” situations are equivalent.) (I put in this intermediate step just to help me see what the final products will be.) 1. 2 Al ( s ) + 3 Br ( g ) 2 AlBr 3( s ) SYN 2. 3 O 2( g ) + 4 Fe ( s ) 2 Fe 2 O 3( s ) SYN 3. Zn ( s ) + 2 HCl ( aq ) ZnCl 2( aq ) + H 2( g ) SR 4. 3 Mg ( s ) + 2 H 3 PO 4( g ) Mg 3 ( PO 4 ) 2( s ) + 3 H 2( g ) SR 5. NH 4 OH ( aq ) NH 3( g ) + H 2 O ( l ) DEC 6. 2 Al 2 O 3( s ) 4 Al ( s ) + 3 O 2( g ) DEC 7. 2 KClO 3( s ) 3 O 2( g ) + 2 KCl ( s ) DEC 8. 2 K ( s ) + HOH ( l ) H 2( g ) + KOH ( aq ) SR 1
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9. 3 Ba
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This note was uploaded on 10/19/2011 for the course PHY 2020 taught by Professor Staff during the Spring '08 term at University of Florida.

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hwk_solns - Solutions to the handout AM Kolchin SC1-Regents...

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