$2$ move below shows some molecules in a tiny sample of a maxture of gases.

$\backslash$table$[[$key$,],[$carben$,$hydrogen$],[$nitrogen$,$axyen$],[$chlorine$,$bromine$]]$

Dreg the sider to see how the moiecules mowe.

$\backslash$table$[[$Does a chemical reaction happen during this,$],[$movie$?,$res$],[$If a dhemical reaction does happen, write a$,],[$balanced chemical equation for it$.,]]$