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(A) The first element of the periodic table is hydrogen $(H)$. When it reacts with dioxygen $(O_2)$,it forms water $(H_2O)$.Ice (solid $H_2O$) has a l

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$H_3O^+$ and $OH^-$

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(A) The first element of the periodic table is hydrogen $(H)$. When it reacts with dioxygen $(O_2)$,it forms water $(H_2O)$.Ice (solid $H_2O$) has a lower density than liquid water,which is why it floats on its liquid state.Water is amphoteric,meaning it can act as both an acid and a base.Water undergoes autoionisation (also known as self-protolysis) according to the following equilibrium reaction:$H_2O_{(l)} + H_2O_{(l)} \rightleftharpoons H_3O^{+}_{(aq)} + OH^{-}_{(aq)}$Thus,the products formed are hydronium ions $(H_3O^+)$ and hydroxide ions $(OH^-)$.

When the first element of the periodic table is treated with dioxygen,it gives a compound whose solid state floats on its liquid state. This compound has an ability to act as an acid as well as a base. What products will be formed when this compound undergoes autoionisation?

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