Question

1) Fe + S = FeS 2) 2HgO = 2Hg + O2 3) Zn + 2HCl = ZnCl2 + H2 4) MgO + H2SO4 = MgSO4 + Н2О Определить типы реакций

Answer 1

Ответ:

Объяснение:

Fe + S = FeS  соединение

2HgO -> 2Hg + O2   разложение

Zn + 2HCl = ZnCl2 + H2  замещение

MgO + H2SO4 = MgSO4 + H2O  обмен

Answer 2

1. Fe + S = FeS: This is a synthesis reaction where two or more substances combine to form a single product. In this case, iron (Fe) and sulfur (S) combine to form iron sulfide (FeS).

2. 2HgO = 2Hg + O2: This is a decomposition reaction where a single reactant breaks down into two or more products. In this case, when heated, mercury oxide (HgO) decomposes into mercury (Hg) and oxygen gas (O2).

3. Zn + 2HCl = ZnCl2 + H2: This is a single replacement reaction where one element replaces another element in a compound. In this case, zinc (Zn) replaces hydrogen (H) in hydrochloric acid (HCl) to form zinc chloride (ZnCl2) and hydrogen gas (H2).

4. MgO + H2SO4 = MgSO4 + H2O: This is a double displacement reaction where the cations and anions of two different compounds switch places, resulting in the formation of two new compounds. In this case, magnesium oxide (MgO) reacts with sulfuric acid (H2SO4) to form magnesium sulfate (MgSO4) and water (H2O).