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:

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum