Question

Определите, расставьте коэффициенты и подпишите тип химической реакции. Хим реакции: 1. S + O2 - SO3 2. CaCO3=CaO + CO2 3. HCI + Zn = ZnCl2 + H2 4. H2 SO4+ BaCl2 - BaSO4 + HCI Тип реакции: 1. 2. 3. 4.​

Answer 1

1. 2S + 3O2 -> 2SO3 (Синтез)

2. CaCO3 -> CaO + CO2 (Распад)

3. 2HCl + Zn -> ZnCl2 + H2 (Замещение)

4. H2SO4 + BaCl2 -> BaSO4 + 2HCl (Двойная замещение)

Answer 2

Chemical Reactions and their Types

1. S + O2 → SO3 - This is a synthesis reaction, also known as a combination reaction. It involves the combination of two or more substances to form a single product. In this case, sulfur (S) combines with oxygen (O2) to form sulfur trioxide (SO3).

2. CaCO3 → CaO + CO2 - This is a decomposition reaction. It involves the breakdown of a compound into two or more simpler substances. In this case, calcium carbonate (CaCO3) decomposes to form calcium oxide (CaO) and carbon dioxide (CO2).

3. HCl + Zn → ZnCl2 + H2 - This is a single displacement reaction, also known as a substitution reaction. It involves the replacement of one element in a compound by another element. In this case, hydrogen chloride (HCl) reacts with zinc (Zn) to form zinc chloride (ZnCl2) and hydrogen gas (H2).

4. H2SO4 + BaCl2 → BaSO4 + HCl - This is a double displacement reaction, also known as a metathesis reaction. It involves the exchange of ions between two compounds. In this case, sulfuric acid (H2SO4) reacts with barium chloride (BaCl2) to form barium sulfate (BaSO4) and hydrochloric acid (HCl).

Please note that the coefficients and types of reactions provided above are based on the given chemical equations.