Cl+h

It looks like you're referencing a chemical reaction involving chlorine (Cl) and hydrogen (H). When chlorine gas (Cl₂) reacts with hydrogen gas (H₂), they can form hydrogen chloride (HCl).

The balanced chemical equation for that reaction is:

\[ \text{H}_2(g) + \text{Cl}_2(g) \rightarrow 2 \text{HCl}(g) \]

In this reaction, one molecule of hydrogen gas reacts with one molecule of chlorine gas to produce two molecules of hydrogen chloride gas.

If you have specific questions about this reaction or need further details, feel free to ask!