Question

S->H2S->SO2->Na2SO3->BaSOСРОЧНООООО​

Answer 1

Ответ:

-Ba Вроде-бы

Объяснение:

Answer 2

It seems like you've provided a series of chemical reactions. Here's a breakdown of each step:

1. S → H2S: This reaction involves the element sulfur (S) reacting with hydrogen gas (H2) to form hydrogen sulfide gas (H2S). The equation for this reaction is: S + H2 → H2S

2. H2S → SO2: In this step, hydrogen sulfide gas (H2S) reacts with oxygen gas (O2) to produce sulfur dioxide gas (SO2). The balanced equation is: 2H2S + 3O2 → 2SO2 + 2H2O

3. SO2 → Na2SO3: The sulfur dioxide gas (SO2) reacts with sodium hydroxide (NaOH) to form sodium sulfite (Na2SO3). The balanced equation is: SO2 + 2NaOH → Na2SO3 + H2O

4. Na2SO3 → BaSO: Finally, sodium sulfite (Na2SO3) reacts with barium chloride (BaCl2) to produce barium sulfate (BaSO4) as a precipitate. The balanced equation is: BaCl2 + Na2SO3 → BaSO4 + 2NaCl

Please note that the reaction you mentioned (BaSOСРОЧНООООО​) seems to have a typographical error. If you intended to write something else or have any other questions, please let me know!