In a particular reaction between copper metal and silver nitrate, 12.7 g AgNO3 produced 4.57 g Ag. What is the percent yield of silver in this reaction??

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

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?

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o