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bazaltina [42]
3 years ago
8

What does group 4 in the periodic table all have in common

Chemistry
1 answer:
belka [17]3 years ago
8 0

Answer:

they are semi metals, so they have the properties of semimetals in commen

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Why do we use a double arrow in the dissociation equation for a weak acid answer?
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The strength of an Arrhenius acid determines percentage of ionization of acid and the number of H⁺ ions formed. <span>
Strong acids completely ionize in water and give large amount ofhydrogen ions (H</span>⁺), so we use only one arrow, because reaction goes in one direction and there no molecules of acid in solution.

For example hydrochloric acid: HCl(aq) → H⁺(aq) + Cl⁻(aq).

<span> Weak acid partially ionize in water and give only a few hydrogen ions (H</span>⁺), in the solution there molecules of acid and ions.

For example cyanide acid: HCN(aq) ⇄ H⁺(aq) + CN⁻(aq).


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