Question

1) Ca(OH)2 +H2S -> CaS + H2O​

Answer 1

Ответ:

Ca(OH)2 + H2S -> CaS + 2H2O

Answer 2

The chemical equation you've provided represents a reaction between calcium hydroxide (Ca(OH)2) and hydrogen sulfide (H2S) to produce calcium sulfide (CaS) and water (H2O). This is a balanced chemical equation:

Ca(OH)2 + H2S -> CaS + 2H2O

In this reaction, calcium hydroxide reacts with hydrogen sulfide to form calcium sulfide and water. The equation is balanced because the same number of atoms of each element is present on both sides of the arrow.