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Chemical Reactions

Chemical Reactions. Level 1 – Chapter 10. Chemical reactions:. Reactants → products Symbols: (s) (l) (g) ( aq ) Δ Catalyst Descriptive sentence → Word Equation (Names → Formulas) → Chemical Equation. Balancing chemical equations. Examples:.

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Chemical Reactions

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  1. Chemical Reactions Level 1 – Chapter 10

  2. Chemical reactions: • Reactants → products • Symbols: • (s) • (l) • (g) • (aq) • Δ • Catalyst • Descriptive sentence → Word Equation (Names → Formulas) → Chemical Equation

  3. Balancing chemical equations • Examples: Ca + H3PO4 Ca3(PO4)2 + H2 KBrO3KBr + O2 (NH4)2CO3 + NaOH Na2CO3 + NH3 + H2O

  4. 5 Types of Chemical Reactions: • Combination (Synthesis): only 1 product • Decomposition: only 1 reactant

  5. 3. Single-Replacement • Activity Series of Metals • Reactivity Trend in Periodic Table for Halogens

  6. 4. Double-Replacement

  7. 5. Combustion • Complete: • Incomplete:

  8. Will something precipitate? • Always soluble (aq): ionic compounds containing… • group 1 alkali metals, ammonium, nitrate, chlorate • Soluble EXCEPT: • chloride = soluble, unless containing Pb, Ag, Hg “the big three” • sulfate = soluble, unless containing Pb, Ag, Hg, Ca, Sr, Ba • NOT soluble (unless meets conditions above): • carbonate, phosphate, chromate, sulfide, hydroxide

  9. Test review: • Matching / Multiple Choice • Word / Formula • Balance / Type • Given: • Periodic table, activity series of metals, solubility rules • Cu(s) + AgNO3(aq) → copper (II)… • Type? • Balance? • Lead (II) sulfate + nitric acid → • Predict states? • Type? • Balance?

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