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Chemical Reactions Bellringers

Chemical Reactions Bellringers. I ate 2 lbs of turkey for dinner and 32 oz. of water. How much did I eat in kg and drink in mL ? (1kg = 2.2 lb, 1 oz = 0.3 L). Balance these reactions. Fe (s) + O 2 (g) Fe 2 O 3(s) Zn 2(s) + HCl ( aq ) ZnCl 2( aq ) + H 2(g)

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Chemical Reactions Bellringers

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  1. Chemical Reactions Bellringers

  2. I ate 2 lbs of turkey for dinner and 32 oz. of water. How much did I eat in kg and drink in mL? (1kg = 2.2 lb, 1 oz = 0.3 L)

  3. Balance these reactions • Fe(s) + O2 (g) Fe2O3(s) • Zn2(s) + HCl(aq) ZnCl2(aq) + H2(g) • NiCl2(s) Ni(s) + Cl2(g) • CH4(g) + O2(g) CO2(g) + H2O(g)

  4. Classify these reactions • 4Fe(s) + 3O2 (g) 2Fe2O3(s) • Zn2(s) + 2HCl(aq) ZnCl2(aq) + H2(g) • NiCl2(s) Ni(s) + Cl2(g) • CH4(g) +2O2(g) CO2(g) + 2H2O(g)

  5. Determine the Molar Mass of the following • Al2O3 • PbBr2

  6. Molar Mass and Balancing • If I have 75.0 grams of AlCl3 , how many moles do I have? • Balance the following reaction

  7. Molar Ratio • Balance the reaction • What type of reaction is the above reaction? • If you have 2.36 moles of HF, how many moles of SiF4 will be produced?

  8. Molar Mass and Balancing • How many grams are in 1.75 moles of H2SO4 • Balance the following reaction

  9. Molar Mass and Balancing • How many grams are in 3.58 moles of HNO3 • Balance the following reaction • __HCl + ___CaCO3  ___CaCl2 + ____H2O +___CO2

  10. Bellringer • What is the molar mass of CaBr2 • Balance and Identify the type of reaction • _____NaBr + ____ CaF2 ____ NaF + ____ CaBr2 • If there are 1.24 moles NaBr are reacted, how many moles of CaBr2 will be produced?

  11. Bellringer 5/10/12 • What is the molar mass of Al2(SO4)3 • Balance and Identify the type of reaction • __H2SO4 + __ NaNO2 __ HNO2 + __ Na2SO4 • If there are 7.52 moles HNO2 are produced, how many moles of H2SO4 were used?

  12. Molar Mass and Balancing • How many moles are in 537.3 grams of Pb(NO3)2 • Balance the following reaction • What type of reaction is the above reaction?

  13. Define • Exothermic reaction- • Endothermic reaction- • If 4.6 moles of NaOHwere reacted, how many moles of NaSO4 will be produced? • 2NaOH + H2SO4 NaSO4 + 2H2O

  14. Brainstorm: How can you find the density of the hexnut? • Remember: • D=m/v

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