If the temperature (at constant volume) of an ideal gas with 20 K is increased to 60 K, the pressure will be: increased to 3P

increased to 40P

decreased by 3P

decreased by 40P

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?