How is the bent geometry related to the tetrahedral geometry?

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

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

One does not belong why? ice, gold ,wood ,diamond and table salt