Question

Срочно!!! даю 15 балов 3. Расставьте коэффициенты в приведенных ниже схемах химических реакций, определите тип реакции. 1. KClO3→KCl+O2 2. NO+O2→NO2 3. CuCl2+Al→AlCl3+Cu 4. Cu(NO3)2→CuO+NO2+O2 5. Fe(OH)2+HCl→FeCl2+H2O 6. Al+Fe2O3→Al2O3+Fe 7. Fe(OH)3→Fe2O3+H2O 8. Na2SO4+BaCl2→NaCl+BaSO4 9. Mn2O3+Si→SiO2+Mn 10. FeCl3+NaOH→Fe(OH)3+NaCl

Answer 1

1. 2KClO3=2KCl+3O2- разложение

2. 2NO+O2=2NO2- соединение

3. 3CuCl2+2Al=2AlCl3+3Cu- замещение

4. 2Cu(NO3)2=2CuO+4NO2+O2- разложение

5. Fe(OH)2+2HCl=FeCl2+2H2O- обмен

6. 2Al+Fe2O3 =Al2O3 +2Fe - замещение

7. 2Fe(OH)3=Fe2O3 +3H2O - разложение

8. Na2SO4+BaCl2=BaSO4+2NaCl - обмен

9. 2Mn2O3+3Si=3SiO2+4Mn - замещение

10. FeCl3+3NaOH=Fe(OH)3+3NaCl - обмен

Answer 2

Coefficients and Types of Chemical Reactions

Here are the coefficients and types of reactions for the given chemical equations:

1. KClO3 → KCl + O2 - Coefficients: 2 KClO3 → 2 KCl + 3 O2 - Type of reaction: Decomposition reaction [[1]]

2. NO + O2 → NO2 - Coefficients: 2 NO + O2 → 2 NO2 - Type of reaction: Combination reaction [[2]]

3. CuCl2 + Al → AlCl3 + Cu - Coefficients: 2 CuCl2 + 3 Al → 3 AlCl3 + 2 Cu - Type of reaction: Single displacement reaction [[3]]

4. Cu(NO3)2 → CuO + NO2 + O2 - Coefficients: 2 Cu(NO3)2 → 2 CuO + 4 NO2 + O2 - Type of reaction: Decomposition reaction [[4]]

5. Fe(OH)2 + HCl → FeCl2 + H2O - Coefficients: Fe(OH)2 + 2 HCl → FeCl2 + 2 H2O - Type of reaction: Double displacement reaction [[5]]

6. Al + Fe2O3 → Al2O3 + Fe - Coefficients: 2 Al + Fe2O3 → Al2O3 + 2 Fe - Type of reaction: Single displacement reaction [[6]]

7. Fe(OH)3 → Fe2O3 + H2O - Coefficients: 2 Fe(OH)3 → Fe2O3 + 3 H2O - Type of reaction: Decomposition reaction [[7]]

8. Na2SO4 + BaCl2 → NaCl + BaSO4 - Coefficients: Na2SO4 + BaCl2 → 2 NaCl + BaSO4 - Type of reaction: Double displacement reaction [[8]]

9. Mn2O3 + Si → SiO2 + Mn - Coefficients: 2 Mn2O3 + 3 Si → 3 SiO2 + 4 Mn - Type of reaction: Single displacement reaction [[9]]

10. FeCl3 + NaOH → Fe(OH)3 + NaCl - Coefficients: 3 FeCl3 + 3 NaOH → Fe(OH)3 + 3 NaCl - Type of reaction: Double displacement reaction [[10]]

Please let me know if you have any further questions!