HELP PLZ PLZ Which of the following solution has the lowest pH value?
A- 0.1M Acetic Acid
B- 0.1M Hydrofluoric Acid
C- 0.1M Nitrous Acid
D- 0.1M Hydrocyanic Acid
E- All pH are equal

(I thought it was B but it had marked me that it was wrong)

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

How can one make a supersaturated solution? (apex)

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull