Question

РЕАКЦИЯ относящаяся к редокс-реакциям:а)2KMnO4+IOFeSO4+8H2SO4→K2SO4+MnSO4+5Fe2(SO4)3+8H2O/б)CaO+H2SO4→CaSO4+H2O/в)Ca(OH)2+H2SO4→CaSO4+2H2O/г)FeSO4+2NaOH→Fe(OH)2+Na2SO4 АЗОТНУЮ КИСЛОТУ НЕЛЬЗЯ ПОЛУЧИТЬ ПРИ ВЗАИМОДЕЙСТВИИ ВЕЩЕСТВ: А)N2O5и H2O Б) NH3и h2o В) AgNO3и hcl Г) H2SO4 и Ba(no3)2

Answer 1

А)

б)


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Answer 2

Reaction a) 2KMnO4 + IOFeSO4 + 8H2SO4 → K2SO4 + MnSO4 + 5Fe2(SO4)3 + 8H2O

This reaction involves the oxidation-reduction (redox) reactions of potassium permanganate (KMnO4) and iron(II) sulfate (FeSO4) in the presence of sulfuric acid (H2SO4). The reaction can be broken down into two half-reactions:

1. Oxidation half-reaction: FeSO4 → Fe2(SO4)3 + 2e- - In this half-reaction, iron(II) sulfate is oxidized to iron(III) sulfate by losing two electrons.

2. Reduction half-reaction: 2KMnO4 + 3H2SO4 + 5e- → K2SO4 + MnSO4 + 3H2O - In this half-reaction, potassium permanganate is reduced to potassium sulfate and manganese(II) sulfate by gaining five electrons.

By combining these two half-reactions, we get the balanced redox equation for the overall reaction.

Reaction б) CaO + H2SO4 → CaSO4 + H2O

This reaction involves the reaction between calcium oxide (CaO) and sulfuric acid (H2SO4). It is a classic acid-base reaction, where calcium oxide acts as a base and sulfuric acid acts as an acid. The reaction can be represented as follows:

CaO + H2SO4 → CaSO4 + H2O

In this reaction, calcium oxide reacts with sulfuric acid to form calcium sulfate and water.

Reaction в) Ca(OH)2 + H2SO4 → CaSO4 + 2H2O

This reaction also involves an acid-base reaction, where calcium hydroxide (Ca(OH)2) reacts with sulfuric acid (H2SO4). The reaction can be represented as follows:

Ca(OH)2 + H2SO4 → CaSO4 + 2H2O

In this reaction, calcium hydroxide reacts with sulfuric acid to form calcium sulfate and water.

Reaction г) FeSO4 + 2NaOH → Fe(OH)2 + Na2SO4

This reaction involves the reaction between iron(II) sulfate (FeSO4) and sodium hydroxide (NaOH). It is a double displacement reaction, where the cations and anions of the reactants exchange places to form new compounds. The reaction can be represented as follows:

FeSO4 + 2NaOH → Fe(OH)2 + Na2SO4

In this reaction, iron(II) sulfate reacts with sodium hydroxide to form iron(II) hydroxide and sodium sulfate.

Nitric acid cannot be obtained by the interaction of the following substances:

a) N2O5 and H2O b) NH3 and H2O c) AgNO3 and HCl d) H2SO4 and Ba(NO3)2

Nitric acid (HNO3) is typically produced through the Ostwald process, which involves the oxidation of ammonia (NH3) with oxygen (O2) in the presence of a platinum catalyst. The reaction can be represented as follows:

4NH3 + 5O2 → 4NO + 6H2O 2NO + O2 → 2NO2 3NO2 + H2O → 2HNO3 + NO

Therefore, nitric acid cannot be obtained by the interaction of N2O5 and H2O, NH3 and H2O, AgNO3 and HCl, or H2SO4 and Ba(NO3)2.

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