How many grams of FeS are produced??​

What is the chemical formula of the following compound

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

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.