Question 23 of 25 What does the entropy of a reaction describe?
A. The amount of heat present in the system
B. The number of molecules in a system
C. The amount of randomness in the system
D. The amount of usable energy in a reaction
SUBMIT

When the volume and number of particles of a gas are constant which of the following is also constant

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

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?