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Serga [27]
3 years ago
12

Classify each of the following substances as either a strong or weak acid, strong or weak base, or a soluble or insoluble salt.

Chemistry
1 answer:
sleet_krkn [62]3 years ago
6 0

Answer:

KOH is a strong base, HClO_{4} is a strong acid, HNO_{2} is a weak acid, NaBr is a soluble salt and PbCl_{2} is an insoluble salt

Explanation:

According to solubility rule, all chlorides, bromides and iodides of metal ions are soluble except for Pb^{2+},Ag^{+} and Hg^{+}[/tex].

Therefore NaBr is a soluble salt and PbCl_{2} is an insoluble salt.

There are seven strong acids : HCl, HBr, HI, H_{2}SO_{4}, HNO_{3}, HClO_{3} and HClO_{4}.

All group IA metal hydroxides e.g. NaOH, KOH etc. are strong base. Also, Ca(OH)_{2}, Sr(OH)_{2} and Ba(OH)_{2} are strong bases.

So, KOH is a strong base, HClO_{4} is a strong acid and HNO_{2} is a weak acid.

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