Problem Set - Balancing Chemical Equations I

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Problem Set - Balancing Chemical Equations I Name: Chemistry Period: Date: RF Mandes, PhD, NBCT Part I Balance each chemical equation by placing the appropriate coefficient in the blank. Write the Reaction Type on the blank. 1. _2_LiBr + _1_ K2SO4 2__KBr + _1_Li2SO4 double replacement 2. _1_PBr3 + _3_NaOH _1_P(OH)3 + _3_NaBr double replacement 3. _1_Ca(NO3)2 _1_ Ca(NO2)2 + _1_O2 decomposition 4. _2_Fe + _3_H2SO4 _1_Fe2(SO4)3 + _3_H2 single replacement 5. _4_H2S + _2_CS2 _2_CH4 + _1_S8 N/A 6. __1 N2 + _3_Mg _1_Mg3N2 single replacement 7. _16_NiO + 1__S8 _16_Ni + _8_SO2 single replacement 8. _3_Pt + _2_Ni2(SO3)3 _3_Pt(SO3)2 + _4_Ni single replacement 9. _2_H2O2 _2_H2O + _1_O2 decomposition 10. _1_SrC2 + _2_H2O _1_Sr(OH)2 + _2_C2H2 N/A 11. _1_OsO4 + _4_H2 _1_Os + _4_H2O single replacement 12 . _2_IrCl3 + _3_NaOH _1_Ir2O3 + _3_HCl + _3_NaCl Problem Set - Balancing Chemical Equations I Part II Convert the word equation into a chemical equation by writing the formula of each compound. Then balance the chemical equation. 13. iron + oxygen iron (III) oxide Equation: Fe + O2 Fe2O3 14. zinc + sodium chloride zinc (II) chloride + sodium Equation: Zn NaCl ZnCl2 + Na 15. calcium nitrate + lithium sulfate calcium sulfate + lithium nitrate Equation: Ca(NO3)2 + Li2SO4 CaSO4 + LiNO3 Part III Write the word equation that corresponds to the reaction that is described. Then convert the word equation into an unbalanced chemical equation 16. When calcium carbonate is heated strongly, carbon dioxide gas is driven off, leaving a residue of calcium oxide in the flask. Word equation: calcium carbonate → carbon dioxide + calcium oxide Unbalanced equation: CaCO3 → CO2 + CaO 17. Solid ammonium carbonate, (NH4)2CO3, is used as the active ingredient in smelling salts. When solid ammonium carbonate is heated, it decomposes into ammonia gas, NH3, carbon dioxide gas and water vapor. Word Equation: ammonium carbonate → ammonia + carbon dioxide + water Unbalanced equation: (NH4)2CO3 → NH3 + CO2 + H2O 18. Acetylene gas, C2H2, is often used by plumbers, welders and glass-blowers because it burns in oxygen, O2, with an intensely hot white flame. The products of the combustion of acetylene are carbon dioxide and water vapor. Word equation: acetylene + oxygen → carbon dioxide + water vapor Unbalanced equation: C2H2 + O2 → CO2 + H2O 19. Methanol, CH3OH, is an important industrial chemical. Methanol may be produced from the carbon monoxide gas and hydrogen gas, H2, under certain conditions of temperature and pressure. Word equation: hydrogen + carbon monoxide → methanol Unbalanced equation: H2 + CO → CH3OH .

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A Study on Physical Chemistry of Solid a Mmonium Materials for Nox Reduction of Diesel Engine Emissions
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