Three Hydrogen atoms are bonded to a central atom. The central atom has a full octet. What is its electron geometry (basic domain), and its molecular geometry (molecular domain)? Also indicate whether it is polar or nonpolar, and why. (Hint it may help to draw a Lewis structure)

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

Amixture with the same composition throughout is!