Question

1. Дописать возможные уравнения реакций: А) H2O2 → Е) H2 + Li → Б) Zn + HCl → Ж) Ca + H2O → В) H2 + Cu → З) KMnO4 → Г) O2 + FeS2 → И) Ni2O3 + H2 → Д) Fe + O2 → К) BaO + H2→Помогите плиз

Answer 1

А)2H2O2→2H2O+O2
Б)Zn+2HCl→ZnCl2+H2
Г)11O2+4FeS2→2Fe2O3+8SO2
Д)4Fe+3O2→2Fe2O3
Е)H2+2Li→2LiH
Ж)Ca+2H2O→Ca(OH)2+H2
З)2KMnO4→K2MnO4+MnO2+O2
И)Ni2O3+3H2→2Ni+3H2O

Answer 2

Possible Equations for the Given Reactions:

A) H2O2 → E) H2 + O2 This reaction represents the decomposition of hydrogen peroxide into water and oxygen gas. Equation: 2H2O2 → 2H2 + O2 [[1]]

Б) Zn + HCl → Ж) ZnCl2 + H2 This reaction represents the reaction between zinc and hydrochloric acid to form zinc chloride and hydrogen gas. Equation: Zn + 2HCl → ZnCl2 + H2 [[2]]

В) Cu → З) CuO + H2 This reaction represents the oxidation of copper to form copper(II) oxide and hydrogen gas. Equation: Cu + H2O → CuO + H2 [[3]]

Г) KMnO4 → O2 + FeS2 This reaction represents the decomposition of potassium permanganate into oxygen gas and iron(II) sulfide. Equation: 2KMnO4 → K2O + 2MnO2 + O2 [[4]]

Д) Fe + O2 → К) Fe2O3 This reaction represents the oxidation of iron to form iron(III) oxide. Equation: 4Fe + 3O2 → 2Fe2O3 [[5]]

И) Ni2O3 + H2 → Д) Ni + H2O This reaction represents the reduction of nickel(III) oxide with hydrogen gas to form nickel and water. Equation: Ni2O3 + 3H2 → 2Ni + 3H2O [[6]]

П) BaO + H2 → К) Ba + H2O This reaction represents the reduction of barium oxide with hydrogen gas to form barium and water. Equation: BaO + H2 → Ba + H2O [[7]]

Please note that these equations are based on the given reactants and products. However, it is important to consider the stoichiometry and conditions (such as temperature and pressure) to accurately represent the reactions.