Question

CaO + HNO₃ = CaO + H₂SO₄ = CaO + H₂CO₃ = Al + HNO₃ = Al + H₃PO₄ = Al + H₂S = Al + H₂SO₃ =

Answer 1

Ответ:

CaO + 2HNO3 = Ca(NO3)2 + H2O

CaO + H2SO4 = CaSO4 + H2O

CaO + H₂CO₃ = CaCO3 + H20

2Al + 6HNO₃ = 2Al(NO3)3 + 3H2

2Al + 2H₃PO₄ = 2AlPO4 + 3H2

2Al + 3H₂S = Al2S3 + 3H2

2Al + 3H₂SO₃ = Al2(SO3)3 + 4H2

Answer 2

Chemical Reactions

When calcium oxide (CaO) reacts with nitric acid (HNO₃), it forms calcium nitrate (Ca(NO₃)₂) and water (H₂O) as per the following equation:

CaO + 2HNO₃ → Ca(NO₃)₂ + H₂O

When calcium oxide (CaO) reacts with sulfuric acid (H₂SO₄), it produces calcium sulfate (CaSO₄) and water (H₂O) as shown in the equation:

CaO + H₂SO₄ → CaSO₄ + H₂O

When calcium oxide (CaO) reacts with carbonic acid (H₂CO₃), it forms calcium carbonate (CaCO₃) and water (H₂O) according to the equation:

CaO + H₂CO₃ → CaCO₃

When aluminum (Al) reacts with nitric acid (HNO₃), it produces aluminum nitrate (Al(NO₃)₃) and hydrogen gas (H₂) as per the following equation:

2Al + 6HNO₃ → 2Al(NO₃)₃ + 3H₂

When aluminum (Al) reacts with phosphoric acid (H₃PO₄), it forms aluminum phosphate (AlPO₄) and hydrogen gas (H₂) as shown in the equation:

2Al + 3H₃PO₄ → 2AlPO₄ + 3H₂

When aluminum (Al) reacts with hydrogen sulfide (H₂S), it produces aluminum sulfide (Al₂S₃) and hydrogen gas (H₂) according to the equation:

2Al + 3H₂S → Al₂S₃ + 3H₂

When aluminum (Al) reacts with sulfurous acid (H₂SO₃), it forms aluminum sulfite (Al₂(SO₃)₃) and water (H₂O) as per the following equation:

2Al + 3H₂SO₃ → Al₂(SO₃)₃ + 3H₂

These reactions demonstrate the chemical properties of the substances involved and the products formed when they react with each other.