Chapter 8 Chemical Reactions

Chapter 8 Chemical Reactions - Chapter8ChemicalReactions...

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Chapter 8 Chemical Reactions     Rachael Johnston hour 4   SYMBOLS yields/ produces * (ppt) or (s) = precipitate or solid (l) = liquid *(g)= gas (aq) aqueous = solid dissolved in water heat is used catalysts is added (often transition metals used as catalyst) not used in reaction SINGLE REPLACEMENT REACTION 1 ELEMENT replaces a 2 nd element in a compound o ex. magnesium + zinc nitrate magnesium nitrate = zinc Mg + Zn (NO 3 ) 2 Mg(NO 3 ) 2 + Zn NEED LAW CONSERVATIN OF MASS!! o Copper + silver nitrate silver + copper nitrate MASS EQUAL ON BOTH SIDES OF = Cu + 2AgN0 3 Cu(NO 3 ) 2 + 2Ag Determine if Single Reactivity 1. Depends on reactivity of the element HALOGENS become less reactive as you move down the 2. The more REACTIVE element kicks out the less reactive family (F more reactive than At) (most reactive) Li-K-Ca-Na-Mg-Al-Zn-Fe-Pb-H-Cu-Hg-Ag (least reactive) Reactive metals Alkali Metals Ex. magnesium + silver nitrate magnesium nitrate + silver o Mg + 2AgNO 3 Mg(NO 3 ) 2 + 2Ag
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Chapter 8 Chemical Reactions - Chapter8ChemicalReactions...

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