Question

S-SO2-H2SO3-BASO3-SO2-SO3-BASO4

Answer 1

Объяснение:

S+O2=SO2

SO2+H2O=H2SO3

H2SO3+BaO=BaSO3+H2O

BaSO3+2HCl=BaCl2+SO2+H2O

2SO2+O2=2SO3

SO3+BaO=BaSO4

Answer 2

The given sequence appears to be related to sulfur and its compounds. Here's a breakdown of each component:

S: Symbol for sulfur, an element with atomic number 16.

SO2: Sulfur dioxide, a colorless gas formed by the combination of sulfur and oxygen. It is a common air pollutant and is produced during the combustion of fossil fuels.

H2SO3: Sulfurous acid, which is formed when sulfur dioxide dissolves in water. It is a weak acid and is used in various chemical reactions.

BASO3: Barium sulfite, a compound formed by the combination of barium and sulfite ions. It is a white solid and is sometimes used as a reducing agent in chemical reactions.

SO2: Sulfur dioxide, as mentioned above.

SO3: Sulfur trioxide, a compound formed by the combination of sulfur and oxygen. It is a white solid that can react with water to form sulfuric acid.

BASO4: Barium sulfate, a compound formed by the combination of barium and sulfate ions. It is a white solid that is insoluble in water. Barium sulfate is commonly used as a contrast agent in medical imaging procedures such as X-rays.

Overall, the sequence represents a series of chemical compounds and elements involving sulfur, including its oxides and salts.