Thực hiện chuỗi phản ứng sau: S-->SO2-->SO3-->H2SO4--> ;SO2-->H2SO3-->Na2SO3-->SO 2-->Na2SO3-->Na2SO4-->BaSO 4

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.