( ( If ( ( a reaction ) ( is ( ( zero order ) ( in ( a reactant ) ) ) ) ) ) ( , ( ( changing ( ( the ( initial concentration ) ) ( of ( that reactant ) ) ) ) ( ( will ( have ( ( ( no effect ) ( on rate ) ) ( -LRB- ( ( ( as long ) ( as ( ( some reactant ) ( is present ) ) ) ) -RRB- ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (DT a) (NN reaction)) (VP (VBZ is) (NP (NP (CD zero) (NN order)) (PP (IN in) (NP (DT a) (NN reactant))))))) (, ,) (S (VP (VBG changing) (NP (NP (DT the) (JJ initial) (NN concentration)) (PP (IN of) (NP (DT that) (NN reactant)))))) (VP (MD will) (VP (VB have) (NP (NP (DT no) (NN effect)) (PP (IN on) (NP (NN rate))) (PRN (-LRB- -LRB-) (SBAR (ADVP (RB as) (RB long)) (IN as) (S (NP (DT some) (NN reactant)) (VP (VBZ is) (ADJP (JJ present))))) (-RRB- -RRB-))))) (. .)))
If a reaction is zero order in a reactant, changing the initial concentration of that reactant will have no effect on rate (as long as some reactant is present).
(ROOT (S (NP (PRP You)) (VP (VBP see) (NP (DT a) (JJR faster) (NN reaction) (NN rate)) (SBAR (WHADVP (WRB when)) (S (NP (NP (DT the) (NN concentration)) (PP (IN of) (NP (NNS reactants)))) (VP (VBZ is) (ADJP (JJR higher)))))) (. .)))