Which of the following compounds is least soluble
in water?
(1) copper (ii) chloride
(2) aluminum acetate
(3) iron (iii) hydroxide
(4) potassium sulfate

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 are transitions between a liquid and gas called? identify which way they are transitioning

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li