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CHEMISTRY SUMMER SCHOOL Name Sodium fluoride Magnesium oxide Copper(II) chloride Silver sulfate Potassium hydrogen carbonate Iron(II) hydroxide Sodium permanganate Calcium fluoride Aluminium nitrate Potassium dichromate Ammonium carbonate Magnesium acetate (Magnesium ethanoate) Calcium dihydrogen phosphate Iron(III) sulfide Nickel(II) nitrate Chromium(III) oxide Sodium sulfite Lead(II) fluoride Silver nitrate Zinc hydroxide Positive ion Negative ion Formula CHEMISTRY SUMMER SCHOOL Balance the following equations: 1. BaCl2(aq) + Na2SO4(aq) BaSO4(s) + 2. NH3(aq) H2SO4(aq) (NH4)2SO4(aq) 3. H2SO4(aq) + CaCO3(s) H2O(l) + 4. Al2O3(s) + C(s) Al(s) + 5. Mg(s) + O2(g) MgO(s) 6. Fe(s) + HCl(aq) FeCl2(aq) 7. AgNO3(aq) + 8. H2S(g) + SO2(g) H2O(l) 9. Li2O2(s) + CO2(g) Li2CO3(s) + O2(g) 10. Fe(NO3)3(aq) + NaOH(aq) + K2CrO4(aq) NaCl(aq) CO2(g) + CaSO4(aq) CO2(g) + Ag2CrO4(s) + + Fe(OH)3(s) + H2(g) KNO3(aq) S(s) NaNO3(aq) Write equations for the following reactions and then balance the equation: 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. Nonane (C9H20) undergoes complete combustion in oxygen. Naphthalene (C10H8) is burned in air, forming carbon and water vapour. The production of quicklime (calcium oxide) and carbon dioxide by heating limestone (calcium carbonate). The heating of lead(II) sulfide ore in oxygen to produce lead(II) oxide and sulfur dioxide. Chromium(III) oxide and silicon solids are combined to form chromium metal and solid silicon dioxide. Hydrogen gas and chlorine gas are combined to form hydrogen chloride gas. Nitric acid reacts with solid zinc carbonate. Acetic acid (ethanoic acid) reacts with potassium hydroxide solution. Propene (C3H6) undergoes incomplete combustion to produce carbon monoxide and water. Silver nitrate and copper(II) chloride solutions combine to form solid silver chloride and a solution of copper(II) nitrate. Sulfuric acid reacts with aluminium oxide powder. Glucose (C6H12O6) is fermented to carbon dioxide and ethanol (C2H5OH) Lead(II) nitrate and potassium iodide solutions combine to make solid lead(II) iodide and a solution of potassium nitrate. Sodium hydrogen carbonate is added to acetic acid (ethanoic acid)