On a dissous 384 g de chlorure de sodium pour obtenir un litre d'eau salée à 100 °C.
Qu'observe-t-on lorsque la température de la solu-
tion est descendue :
a. à 90 °C ?
b. à 20 °C?

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers

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 neutrons does an element have if its atomic number is 50 and its mass number is 166