Question

10. Перетворіть схему реакції на хiмiчне рівняння: PH3 + O2 → P2O5 + H2O -> CaCO3 + HCl - CaCl2 + CO2 + H2O CuO + HNO3 → Cu(NO3)2 + H2O​

Answer 1

Ответ:

Объяснение:

2PH3 + 4O2 = P2O5 + 3H2O

CaCO3 + 2HCl = CaCl2 + CO2 + H2O

CuO + 2HNO3 = Cu(NO3)2 + H2O

Answer 2

Conversion of Reaction Scheme to Chemical Equations

Let's convert the given reaction scheme into chemical equations:

1. PH3 + O2 → P2O5 + H2O 2. CaCO3 + HCl → CaCl2 + CO2 + H2O 3. CuO + HNO3 → Cu(NO3)2 + H2O

Please note that the above equations are balanced chemical equations, where the number of atoms of each element is the same on both sides of the equation.

Let's discuss each equation in more detail:

1. PH3 + O2 → P2O5 + H2O - This equation represents the reaction between phosphine (PH3) and oxygen (O2) to form diphosphorus pentoxide (P2O5) and water (H2O). - The balanced equation for this reaction is: 4 PH3 + 5 O2 → 2 P2O5 + 6 H2O.

2. CaCO3 + HCl → CaCl2 + CO2 + H2O - This equation represents the reaction between calcium carbonate (CaCO3) and hydrochloric acid (HCl) to form calcium chloride (CaCl2), carbon dioxide (CO2), and water (H2O). - The balanced equation for this reaction is: CaCO3 + 2 HCl → CaCl2 + CO2 + H2O.

3. CuO + HNO3 → Cu(NO3)2 + H2O - This equation represents the reaction between copper(II) oxide (CuO) and nitric acid (HNO3) to form copper(II) nitrate (Cu(NO3)2) and water (H2O). - The balanced equation for this reaction is: 3 CuO + 6 HNO3 → 3 Cu(NO3)2 + 3 H2O.

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