Answers: 3
Chemistry, 22.06.2019 09:00
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?
Answers: 1
Chemistry, 22.06.2019 22:00
4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.
Answers: 2
Chemistry, 23.06.2019 03:00
Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.
Answers: 1
Chemistry, 23.06.2019 04:00
Which of these are physical changes in matter? check all that apply boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese
Answers: 1
What is the maximum yield in grams of Cl2 that can be produced by reacting 70.0g of KMnO4 with 75.0...
Social Studies, 19.08.2019 03:20
Mathematics, 19.08.2019 03:20
English, 19.08.2019 03:20
Mathematics, 19.08.2019 03:20
Mathematics, 19.08.2019 03:20
Mathematics, 19.08.2019 03:20
Health, 19.08.2019 03:20
Social Studies, 19.08.2019 03:20
Mathematics, 19.08.2019 03:20
Geography, 19.08.2019 03:20
History, 19.08.2019 03:20