Chemistry, 27.12.2021 03:20, meababy2009ow9ewa
Burning 1.6 grams of substance M requires 6.4 grams of oxygen to produce carbon dioxide (CO2) and water (H2O) according to the mass ratio:
: = 11 : 9
Calculate the mass of CO2 and H2O produced.
Answers: 3
Chemistry, 23.06.2019 06:30, Liapis
An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost
Answers: 3
Chemistry, 23.06.2019 10:30, genyjoannerubiera
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
Burning 1.6 grams of substance M requires 6.4 grams of oxygen to produce carbon dioxide (CO2) and wa...
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