Question

Допишите реакция: CuCO3)-(t) KOH + HNO3 C + O2 NiO + H2SO4 Fe2O3 + C

Answer 1

2)OH(−) + H(+) = H2O
3)C + O2  CO2
4)NiO + H2SO4 = H2O + NiSO4
5)Fe2O3 + 3 C = 2 Fe + 3 CO

Answer 2

Chemical Reactions:

The chemical equation provided is a combination of several reactions. Let's break it down step by step:

1. CuCO3 -> CuO + CO2 - When copper(II) carbonate (CuCO3) is heated, it decomposes into copper(II) oxide (CuO) and carbon dioxide (CO2) [[1]].

2. 2KOH + HNO3 -> KNO3 + H2O - Potassium hydroxide (KOH) reacts with nitric acid (HNO3) to produce potassium nitrate (KNO3) and water (H2O) [[2]].

3. 2C + O2 -> 2CO - Carbon (C) reacts with oxygen (O2) to form carbon monoxide (CO) [[3]].

4. NiO + H2SO4 -> NiSO4 + H2O - Nickel(II) oxide (NiO) reacts with sulfuric acid (H2SO4) to produce nickel(II) sulfate (NiSO4) and water (H2O) [[4]].

5. Fe2O3 + 3H2SO4 -> Fe2(SO4)3 + 3H2O - Iron(III) oxide (Fe2O3) reacts with sulfuric acid (H2SO4) to yield iron(III) sulfate (Fe2(SO4)3) and water (H2O) [[5]].

Overall Reaction:

When all these individual reactions are combined, the overall chemical equation becomes:

CuCO3(s) -> CuO(s) + CO2(g) 2KOH(aq) + HNO3(aq) -> KNO3(aq) + 2H2O(l) 2C(s) + O2(g) -> 2CO(g) NiO(s) + H2SO4(aq) -> NiSO4(aq) + H2O(l) Fe2O3(s) + 3H2SO4(aq) -> Fe2(SO4)3(aq) + 3H2O(l)

This represents the overall chemical reaction based on the given components.

Let me know if there's anything else you'd like to know!