A gas has a volume of 550 mL at a temp of -55°C. What volume will the gas occupy at 30.0°C, assuming constant pressure?

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

4. absorption has the highest risk of overdose due to increased potency. a. rectal b. oral c. transdermal d. intranasal

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?