Round each of the following measurements to the number of significant figures indicated.
67,029 to three significant figures

0.15 to one significant figure

52.8005 to five significant figures

3.17497 to three significant figures

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

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?

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.