( ( if ( volume ( is increased ) ) ) ( , ( ( the reactin ) ( ( ( proceeds ( towards side ) ) ( with ( ( most moles ) ( of gas ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN if) (S (NP (NN volume)) (VP (VBZ is) (VP (VBN increased))))) (, ,) (NP (DT the) (NN reactin)) (VP (VBZ proceeds) (PP (IN towards) (NP (NN side))) (PP (IN with) (NP (NP (JJS most) (NNS moles)) (PP (IN of) (NP (NN gas)))))) (. .)))
if volume is increased, the reactin proceeds towards side with most moles of gas.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (PRP you)) (VP (VBP add) (NP (NP (NNS moles)) (PP (IN of) (NP (NP (NN gas)) (PP (TO to) (NP (DT a) (NN baloon)))))) (PP (IN by) (S (VP (VBG blowing) (NP (PRP it)) (PRT (RP up)))))))) (, ,) (NP (DT the) (NN volume)) (VP (VBZ increases)) (. .)))