How the ph values can be used to compare the strength of hydrochloric acid and ethanoic acid?

Which statement is best described as a atom

Why are pipes bursting in the in extremely cold weather?

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.