Asolution of benzoic acid (c6h5cooh) that is 0.20 m has a ph of 2.45. what is ka for benzoic acid?

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Who discovered a pattern to the elements in 1869?

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion