What does variable mean in a science project.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

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

Why is silver chloride is an ionic compound