2 answers:
If 4 moles of P is used by 5 mole of O2 then....0.489 moles will be used by 5/4 × .489 = .611 moles of O2 so .611 moles so if 4 moles of P is burnt , 1 mole of P4O10 is produced ....so for .489 moles...... .489/4=.122 moles ! so mass will be .122× 283.89 = 34.7 grams so first ans is .611 moles and second is 34.7 grams ! if you have any problem regarding this , just comment !!!
You might be interested in
It allows a scientist to understand the history of metamorphic rock by estimating the temperature, depth, and pressure at which a rock undergoes metamorphism.
Hope that helped!
Answer:
cream - contains a higher proportion of oil than water
ointment - dr4g mixed in approximately equal proportions of oil and water
i don't know about the other two sorry
Magnesium has atomic no 12
Electronic configuration given by
Or
Answer:
its caused by the convection of air masses with differences in densities mainly due to their differences in temperatures.
-Hops
The action force is you sitting on the chair and the reaction force is the gravity on the chair that is caused by you sitting on the chair