What is the formula for an ionic compound that contains the elements magnesium and chlorine?

Complete this brønsted-lowry reaction placing each product by its appropriate label. hso4- + hcn

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

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?