As the water is cooled, at what temperature do its particles become fixed in place?

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Which factor is likely to impact the possible number of compounds ?