<prompt> Answer this question truthfullyTo what does the term equation refer, and is it possible to assign a rating to it?  <response>: <reason> When a substance reacts simultaneously to give two different products, a parallel or competitive reaction is said to take place.Two first order reactions: A rightarrow ; B and A rightarrow ; C , with constants k_1 and k_2 and rate equations -fracdAdtk_1k_2A, fracdBdtk_1A and fracdCdtk_2AThe integrated rate equations are then A A_0 e-k_1k_2t; B frack_1k_1k_2A_0 1-e-k_1k_2t and C frack_2k_1k_2A_0 1-e-k_1k_2t.One important relationship in this case is fracBCfrack_1k_2One first order and one second order reaction: This can be the case when studying a bimolecular reaction and a simultaneous hydrolysis which can be treated as pseudo order one takes place: the hydrolysis complicates the study of the reaction kinetics, because some reactant is being spent in a parallel reaction. For example A reacts with R to give our product C, but meanwhile the hydrolysis reaction takes away an amount of A to give B, a byproduct: A H_2O rightarrow B and A R rightarrow C . The rate equations are: fracdBdtk_1AH_2Ok_1A and fracdCdtk_2AR. Where k_1 is the pseudo first order constant.The integrated rate equation for the main product C is CR_0 left 1-e-frack_2k_1A_01-e-k_1t right , which is equivalent to ln fracR_0R_0-Cfrack_2A_0k_11-e-k_1t. Concentration of B is related to that of C through B-frack_1k_2 ln left 1 - fracCR_0 rightThe integrated equations were analytically obtained but during the process it was assumed that A_0-Capprox ;A_0 therefeore, previous equation for C can only be used for low concentrations of C compared to A 0 