1. What is the percentage composition of a sulfur-chlorine compound, given that a 30.9 g sample of the compound contains 9.63 g of sulfur and 21.3 g of chlorine?

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.

If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes? or no? this question is worth 20 points! let it be correct!

Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __