The equipment the engineer has can only hold a maximum of 1450 g of sodium before it is mixed with excess sulfuric acid to carry out the reaction described above. What mass of hydrogen gas can be produced from the equipment they currently
have? Show your work and/or explain the math that you used to arrive at this answer.

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)

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.

Why is the melting of ice a physical change ?