Please help me if you have done EDGEUNITY This is my last assigment it would mean the world please don't write random things please :(

attached the assigment your can screenshot yours and upload it or you can type it out jjst please help me. i have little time to complete this.

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.

How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm