Astudent has a solution with a ph of 7. the student adds hf, hydrogen floride, to the solution, hoping to increases the ph of the solution. what is wrong with this student's approach?

select one: a. you cannot change the ph of a solution. b. hf is an acid, so it will lower the ph of the solution. c. the ph of the solution is already as high as possible. d. the ph is 7, so the solution is already as acidic as possible.

How would you reduce the volume of gas

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity