A chemist wants to use an element with a large electronegativity for an experiment. Based on trends in the periodic table, which of the following
groups has the largest electronegativity.
A. Halogens
B. Alkaline Earth Metals
C. Noble Gases
D. Alkali Metals

Suppose you got a low yield of benzoin from your benzoin condensation reaction and thus only have 0.300 g of benzoin to use as the starting material for this reaction. how much concentrated nitric acid should you add? (concentrated nitric acid is 15.8 m). write your answer in the form x.xx ml

Which is an example of a reversible physical change?

What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases