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Ch 10 Chemical Reactions

Ch 10 Chemical Reactions. 10.1. Temperature change. 100.1. Evidence of Chemical Change.

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Ch 10 Chemical Reactions

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  1. Ch 10 Chemical Reactions 10.1

  2. Temperature change 100.1 Evidence of Chemical Change http://gallery.hd.org/_c/natural-science/_more1999/_more05/ice-melts-at-0C-electronic-thermometer-glass-beaker-liquid-water-ice-cubes-melting-probe-in-water-white-backdrop-2-AJHD.jpg.html?sessionVar=spider&sessionVarLiteUI=true&sessionVarLocale=en_GB

  3. COLOR CHANGE Evidence of Chemical Change

  4. ODOR Evidence of Chemical Change http://pubs.acs.org/cen/newscripts/86/8626newscripts.html

  5. Gas Bubbles Evidence of Chemical Change

  6. A solid forms Precipitate Evidence of Chemical Change http://www.chem.uiuc.edu/webFunChem/grammoleprob/GramMoleProb3.htm http://year9reaction.wordpress.com/precipitation/

  7. Word Equation Solid sodium reacts with water to produce sodium hydroxide and hydrogen gas • Skeletal Na+H2O NaOH + H2 Chemical Equations

  8. Balanced Chemical Equations

  9. Balanced 2Na+2H2O 2NaOH + H2 Skeletal Na+H2O NaOH + H2 Balanced Chemical Equations

  10. Write Skeletal Equation • Be sure to use proper formulas • Count atoms of each element in reactants • Remember diatomics H2, O2, N2, F2, Br2, Cl2, I2 • Count atoms of each element in products • Change coefficients to balance the number of each element in reactants and products • Make sure coefficients are in lowest possible ratioFlow chart on pg 283 Balancing Chemical Equations

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