4. What mass of oxygen is required to oxidize aluminum to produce 120.0g of aluminum oxide?
4A1 + 302 →2Al2O3 I’ll mark you brainilist no links please!

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.