Answers: 2
Chemistry, 21.06.2019 16:10
Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer
Answers: 1
Chemistry, 21.06.2019 22:30
Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.
Answers: 2
Chemistry, 22.06.2019 00:30
Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.
Answers: 1
If 10.0 liters of oxygen at STP are heated to 785.15 °K, what will be the new volume of gas if the p...
Chemistry, 26.06.2020 17:01
Biology, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
English, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
Spanish, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
History, 26.06.2020 17:01
Business, 26.06.2020 17:01
World Languages, 26.06.2020 17:01
Mathematics, 26.06.2020 17:01
Social Studies, 26.06.2020 17:01