Phosphorous and chlorine gases combine to produce phosphorous trichloride: g° at 298 k for this reaction is -642.9 kj/mol. the value of g at 298 k for a reaction mixture that consists of and is

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

What is the final velocity of the initial velocity of 25 and -50?