Question

give the name of HSO4,H2SO4,SO3,SO2,SO4

Answer 1

hydrogen sulphate, sulphuric acid, sulphur trioxide, sulphur dioxide, sulphate ion

Answer 2

HSO4- is the hydrogen sulfate ion. It is also called by the older name of Bisulfate ion. It can lose a proton and become Sulfate ion, or gain a proton to become Sulfuric Acid.
h2so4 =Sulfuric acid
so2 =Sulfur dioxide
so3 =Sulfur trioxide (alternative spelling sulphur trioxide) is the chemical compound with the formula SO3, with a relatively narrow liquid range.
so4 = Sulfate ion
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