Question

CuO+HI→ CaCo₃+MgO→ SO₃+MgO→ MgO+H₂SO₄→ Al₂O₃+H₂→

Answer 1

2CuO+4HI=2CuI2++I2+2H2O

CaCO3+MgO= реакция не пойдёт

SO3+MgO=MgSO4

MgO+H2SO4=MgSO4+H2O

Al2O3+3H2=2Al+3H2O

Answer 2

+ 2CuO + H2 → 2Cu + H2O

In this reaction, copper oxide (CuO) reacts with hydrogen gas (H2) to produce copper metal (Cu) and water (H2O). This is a reduction reaction, where the copper oxide is being reduced to copper metal by gaining electrons from hydrogen gas.

+ CaCO3 + MgO → CaO + MgCO3

In this reaction, calcium carbonate (CaCO3) reacts with magnesium oxide (MgO) to produce calcium oxide (CaO) and magnesium carbonate (MgCO3). This is a decomposition reaction, where calcium carbonate breaks down into its constituent elements (calcium oxide and carbon dioxide) and magnesium oxide combines with carbon dioxide to form magnesium carbonate.

+ SO3 + MgO → MgSO4

In this reaction, sulfur trioxide (SO3) reacts with magnesium oxide (MgO) to produce magnesium sulfate (MgSO4). This is a combination reaction, where sulfur trioxide and magnesium oxide combine to form magnesium sulfate.

+ MgO + H2SO4 → MgSO4 + H2O

In this reaction, magnesium oxide (MgO) reacts with sulfuric acid (H2SO4) to produce magnesium sulfate (MgSO4) and water (H2O). This is an acid-base reaction, where the magnesium oxide reacts with the sulfuric acid to form magnesium sulfate and water.

+ Al2O3 + H2 → Al + H2O

In this reaction, aluminum oxide (Al2O3) reacts with hydrogen gas (H2) to produce aluminum metal (Al) and water (H2O). This is a reduction reaction, where the aluminum oxide is being reduced to aluminum metal by gaining electrons from hydrogen gas.