Chemistry, 24.01.2020 23:31 anyone2562
The flame in a torch used to cut metal is produced by burning acetylene (c2h2) in pure oxygen. assuming the combustion of 1 mole of acetylene releases 1251 kj of heat, what mass of acetylene is needed to cut through a piece of steel if the process requires 20.7 × 104 kj of heat?
Answers: 2
Chemistry, 22.06.2019 11:40
Enzymes affect the reactions in living cells by changing the
Answers: 3
Chemistry, 23.06.2019 00:00
How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?
Answers: 3
Chemistry, 23.06.2019 01:30
If a particle has z = 25 and 23 electrons, what is its charge?
Answers: 2
Chemistry, 23.06.2019 10:30
4al + 3o2 → 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.
Answers: 2
The flame in a torch used to cut metal is produced by burning acetylene (c2h2) in pure oxygen. assum...
English, 19.10.2020 07:01
Health, 19.10.2020 07:01
Physics, 19.10.2020 07:01
History, 19.10.2020 07:01
Social Studies, 19.10.2020 07:01
History, 19.10.2020 07:01
History, 19.10.2020 07:01
History, 19.10.2020 07:01
Mathematics, 19.10.2020 07:01
Biology, 19.10.2020 07:01