Use enthalpies of formation from the textbook to calculate the standard enthalpy of reaction for the following methane–generating reaction of methanogenic bacteria, given δhf of ch3nh2(g) = –22.97 kj/mol:

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize