Balancing equations 2 PDF

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Balancing equations assignment...

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Unit 6: Balancing Chemical Equations 

 1.

__2__SO2 + __1__O2 → __2__SO3

 2.

__2__CH4 + __3__O2 → __2__CO + __4__H2O

 3.

__2__P + __3__Cl2 → __2__PCl3

 4.

__2__CO + __1__O2 → __2__CO2

 5.

__2__CH4 + __1__ O2 → __2__CH3OH

 6.

__2__Li + __1__Br2 → __2__LiBr

 7.

__2__Al2O3 → __4__Al + __3__O2

 8. __2__Na + __2__H2O → __2__NaOH + __1__H2   9. __6__CO2 + __6__H2O → __1__C6H12O6 + __6__O2   10. __1__H2SO4 + __2__NaCl → __2__HCl + __1__Na2SO4   Two reactions used to get rid of sulfur dioxide, a pollutant from burning coal:  11. __3__H2 + __1__SO2 → __1__H2S + __2__H2O  12. __2__CaCO3 + __2__SO2 + __1__ O2 → __2__CaSO4 + __2__CO2  13. __2__AgNO3 + __1__CaCl2 → __2__AgCl + __1__Ca(NO3)2   ©Modeling Instruction – AMTA 2013

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 14.   15.   16.   17.  18.   19.   20. 

__2__HCl + __1__Ba(OH)2 → __1__BaCl2 + __2__H2O

__1__H3PO4 + __3__NaOH → __1__Na3PO4 + __3__H2O

__1__Pb(NO3)2 + __2__KI → __1__ PbI2 + __2__KNO3

__3__CuO + __2__NH3 → __1__N2 + __3__Cu + __3__H2O __1__C2H5OH + __3__O2 → __2__CO2 + __3__H2O

__2__C2H6 + __3__O2 → __2__CH3COOH + __2__H2O

__3__NO2 + __1__H2O → __2__HNO3 + __1__NO 

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©Modeling Instruction – AMTA 2013

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   1. When a solution of hydrogen chloride is added to solid sodium bicarbonate (NaHCO3), the products are carbon dioxide, water, and aqueous sodium chloride. HCl(aq) + NaHCO3(s) --> CO2(g) + H2O(l) + NaCl(aq)   2. Steam (gaseous water) reacts with carbon at high temperatures to produce carbon monoxide and hydrogen gases. H2O(g) + C(s) --> CO(g) + H2(g)   3. Limestone, CaCO3, decomposes when heated to produce lime, CaO, and gaseous carbon dioxide. CaCO3(s) --> CaO(s) + COs(g)   4. Ethyl alcohol (a liquid), C2H6O, burns in the air to produce carbon dioxide and gaseous water. C2H6O(l) + 3 O2(g) --> 2 CO2(g) + 3 H2O(l)   5. Solid titanium (IV) chloride reacts with water, forming solid titanium (IV) oxide and aqueous hydrogen chloride. TiCl4(s) + 2 H2O(l) --> TiO2(s) + 4 HCl(aq)   6. At high temperatures, the gases chlorine and water react to produce hydrogen chloride and oxygen gases. 2 Cl2(g) + 2 H2O(g) --> 4 HCl(g) + O2(g)   7. Steel wool (nearly pure Fe) burns in air to form the solid iron oxide, Fe2O3. 4Fe(s) + 3O2(g) --> 2 Fe2O3(s)   8. During photosynthesis in plants, carbon dioxide, and water are converted into glucose, C6H12O6, and oxygen gas. 6CO2(g) + 6H2O(g) --> C6H12O6(s) + 6O2(g)   9. Solutions of calcium hydroxide, Ca(OH)2, and nitric acid, HNO3, react to produce water and aqueous calcium nitrate, Ca(NO3)2. Ca(OH)2(aq) + 2HNO3(aq) --> 2 H2O(l) + Ca(NO3)2(aq)

©Modeling Instruction – AMTA 2013

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