NaHCO3(s) + HCl(aq) — NaCl(s) + H2011) + CO2 teacher reacts 84.0 g of sodium bicarbonate with excess hydrochloric acid. What is the
percent yield for sodium chloride if 56.0 g of sodium chloride is produced?

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?

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *