Two of the types of ultraviolet light, uvb and uvc, are both components of sunlight. their wavelengths range from 280 to 320 nm for uvb and from 100 to 280 nm for uvc. compare the energy of microwaves, uvb, and uvc. rank from greatest to least energy per photon. to rank items as equivalent, overlap them.
Answers: 3
Chemistry, 22.06.2019 06:30, 91miketaylor
Particle model to predict what will happen if a sharp object creates a hole in the soccer ball
Answers: 2
Chemistry, 22.06.2019 19:20, Lovelybunny321
15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
Answers: 1
Chemistry, 22.06.2019 19:30, toriabrocks
If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)
Answers: 2
Chemistry, 22.06.2019 20:00, jalenevoyles
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Two of the types of ultraviolet light, uvb and uvc, are both components of sunlight. their wavelengt...
Mathematics, 05.10.2020 17:01
Mathematics, 05.10.2020 17:01