Explain in terms of ions and molecules. what happens when any acid reacts with any alkali

Chemistry

1 answer:

kodGreya [7K]3 years ago

6 0

It dissolves and desinagrates sorry for my spelling

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Write an equation to show how hco3− can act as a base with hs− acting as an acid.

Ne4ueva [31]

Answer: $HCO_{3}^{-}+ HS^{-}\rightleftharpoons H_{2}CO_{3} + S^2{-}$

Explanation:

According to Bronsted and Lowry an acid is a proton donor and base is a proton acceptor.

Therefore, the equation for the reaction will be as follows.

$HCO_{3}^{-}+ HS^{-}\rightleftharpoons H_{2}CO_{3} + S^2{-}$

Here, $HCO_{3}^{-}$ acts as a base as it is accepting a proton and $HS^{-}$ acts as an acid because it is donating a proton.

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<u>Answer:</u> Antimony ion is the smallest and yttrium ion is the largest.

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Atomic radius of an atom is defined as the total distance from the nucleus to the outermost shell of the atom.

An ion is formed when a neutral atom looses or gains electrons.

When an atom looses electrons, it results in the formation of positive ion known as cation.
When an atom gains electrons, it results in the formation of negative ion known as anion.

As moving from left to right in a period, more and more electrons get added up in the same shell and the attraction between the last electron and nucleus increases, which results in the shrinkage of size of an atom. Hence, the size of an atom decreases.

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