What is the definition of a dipole. and include a example.

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

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Can you me with this i really appreciate it