Question

определить тип химической реакции. 1. AgNO3 = Ag + O2 +NO2. 2. CaO + H2O = Ca(OH)2. 3. Al + Fe2O3 = Al2O3 + Fe.4.NaOH + CuSO4 = Cu(OH)2 + Na2SO4.

Answer 1

1) разложения

2) соединения

3) замещения

4) ионного обмена

Answer 2

Types of Chemical Reactions

1. The given chemical equation is: AgNO3 = Ag + O2 + NO2.

This is a decomposition reaction. In a decomposition reaction, a single compound breaks down into two or more simpler substances. In this case, AgNO3 decomposes into Ag, O2, and NO2.

Source: 2. The given chemical equation is: CaO + H2O = Ca(OH)2.

This is a combination reaction. In a combination reaction, two or more substances combine to form a single compound. In this case, CaO and H2O combine to form Ca(OH)2.

Source: 3. The given chemical equation is: Al + Fe2O3 = Al2O3 + Fe.

This is a redox reaction. In a redox reaction, there is a transfer of electrons between the reactants. In this case, aluminum (Al) is oxidized, and iron(III) oxide (Fe2O3) is reduced. The resulting products are aluminum oxide (Al2O3) and iron (Fe).

Source: 4. The given chemical equation is: NaOH + CuSO4 = Cu(OH)2 + Na2SO4.

This is a double displacement reaction. In a double displacement reaction, the positive ions of two compounds switch places to form two new compounds. In this case, sodium hydroxide (NaOH) reacts with copper sulfate (CuSO4) to form copper hydroxide (Cu(OH)2) and sodium sulfate (Na2SO4).

Source: Please note that the sources provided do not have specific titles or complete information. However, the information provided in the snippets aligns with the types of reactions described.