Question

FeS2 SO2 SO3 H2SO4 H2 H2O Mg(OH)2 MgCO3 CO2

Answer 1

2FeS2 + 5O2 = 2FeO + 4SO2

2SO2 + O2 = 2SO3

SO3 + H2O = H2SO4

Mg + H2SO4 = MgSO4 + H2

2H2 + O2 = 2H2O

Mg + 2H2O(пары́)= Mg(OH)2 + H2

Mg(OH)2 + CO2 = MgCO3 + H2O

MgCO3 (t)= MgO + CO2

Answer 2

The given list consists of chemical formulas representing various compounds. Here's a breakdown of each compound:

1. FeS2: Iron disulfide, also known as pyrite or fool's gold.
2. SO2: Sulfur dioxide, a toxic gas with a pungent odor. It is produced by the burning of sulfur-containing fuels and is a significant air pollutant.
3. SO3: Sulfur trioxide, a highly reactive compound. It is often used in the production of sulfuric acid.
4. H2SO4: Sulfuric acid, a strong and corrosive acid. It is widely used in various industrial processes.
5. H2: Hydrogen gas, a colorless and highly flammable gas. It is the lightest and most abundant element in the universe.
6. H2O: Water, a chemical compound consisting of two hydrogen atoms bonded to one oxygen atom. It is essential for all known forms of life.
7. Mg(OH)2: Magnesium hydroxide, an inorganic compound commonly known as milk of magnesia. It is used as an antacid and laxative.
8. MgCO3: Magnesium carbonate, a white solid often found in mineral form. It is used in various applications, including as an antacid and in the production of ceramics.
9. CO2: Carbon dioxide, a colorless and odorless gas. It is a greenhouse gas and an important component of Earth's atmosphere.

If you have any specific questions or need further information about any of these compounds, feel free to ask!