What is the mass of an object if its potential energy is 800 J and it is 2.0 m above the ground?

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.