Hello!
From this list, a) HCl is not a weak acid.
Hydrochloric Acid, or HCl, is one of the most common examples of a strong acid. Strong acids dissociate completely in water to generate H⁺ and A⁻ ions. For HCl this reaction is as follows:
HCl → H⁺ + Cl⁻
Being more precise, for an acid to be called strong it needs to be stronger than hydronium ion (H₃O⁺) <span>pKa</span> <span>< -</span>1.74.
Have a nice day!
The combustion of a substance forming or breaking bonds mixing two substances.
P is a element called Phosphorus.
Cl is chlorine. Since their is 5 of chlorine, we call it pentachloride. Penta means 5, as in the shape PENTAgon.
Compound Name: Phosphorus pentachloride
N = m/M
= 200g/(12.01g/mol + 2(16.00g/mol))
=4.54mol
We write the following substances' chemical formula as follows:
Ferric hydrogen sulphate = Fe(HSO4)3.<span>
Tungsten (V) peroxide = </span>W2(O2)5<span>
Nitric acid = HNO3
Aluminum acetate = </span>C6H9AlO6
Hope this answers the question. Have a nice day.
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