Chemistry Chapter 4 Extra problem solutions

Chemistry Chapter 4 Extra problem solutions - Chapter Four...

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Chapter Four Extra Practice Problems 1. Identify each of the following as a strong electrolyte, weak electrolyte, or nonelectrolyte. HBr strong Ca(OH) 2 strong HNO 3 strong HNO 2 weak C 12 H 22 O 11 nonelectrolyte KBr strong H C N w e a k C 6 H 14 nonelectrolyte Li 2 CO 3 strong Fe(OH) 2 weak Rb 3 PO 4 strong HI strong H 2 S weak NaOH strong HClO 3 strong H 3 PO 4 weak H 2 CO 3 weak RbOH strong AgOH weak 2. Identify each of the following as soluble, insoluble, or moderately soluble. NaCH 3 COO soluble A g I i n s o l u b l e Ca(ClO 4 ) 2 soluble Al(NO 3 ) 3 soluble HgBr 2 moderately soluble KClO 3 soluble
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PbI 2 insoluble A g C l i n s o l u b l e N a B r s o l u b l e FeF 2 soluble MgF 2 insoluble NH 4 F soluble PbF 2 insoluble CaSO 4 moderately soluble HgSO 4 insoluble Na 2 SO 4 soluble Cr 2 (SO 4 ) 3 soluble NH 4 OH soluble Fe(OH) 2 insoluble AgOH insoluble Ca 3 (AsO 4 ) 2 insoluble Na 3 PO 4 soluble Ba 3 (PO 4 ) 2 insoluble Cu 3 PO 4 insoluble Na 2 CO 3 soluble K 2 CO 3 soluble CaCO 3 insoluble Sn(CO 3 ) 2 insoluble K 2 S soluble 3. Write balanced net and total ionic equations for the following reactions. Identify the spectator ions in each. a) Pb(NO 3 ) 2 + Na 2 SO 4 Æ PbSO 4 + NaNO 3 Pb(NO 3 ) 2 ( aq ) + Na 2 SO 4 ( aq ) Æ PbSO 4 ( s ) + 2NaNO 3 ( aq ) Pb 2+ ( aq ) + 2NO 3 - ( aq ) + 2Na + ( aq ) + SO 4 2- ( aq ) Æ PbSO 4 ( s ) + 2Na + ( aq ) + 2NO 3 - ( aq ) Pb 2+ ( aq ) + SO 4 2- ( aq ) Æ PbSO 4 ( s )
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Spectator ions = Na + and NO 3 - b) Zn( s ) + HCl Æ ZnCl 2 + H 2 ( g ) Zn( s ) + 2HCl( aq ) Æ ZnCl 2 ( aq ) + H 2 ( g ) Zn( s ) + 2H + ( aq ) + 2Cl - ( aq ) Æ Zn 2+ ( aq ) + 2Cl - ( aq ) + H 2 ( g ) Zn( s ) + 2H + ( aq ) Æ Zn 2+ ( aq ) + H 2 ( g ) Spectator ion = Cl - c) FeO( s ) + 2HClO 4 Æ H 2 O + Fe(ClO 4 ) 2 FeO( s ) + 2HClO 4 ( aq ) Æ H 2 O( l ) + Fe(ClO
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Chemistry Chapter 4 Extra problem solutions - Chapter Four...

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