Indicate whether aqueous solutions of each of the following solutes will contain only ions, only molecules, or mostly molecules and a few ions: a) NH4Cl, a strong electrolyte.
b) Ethanol, CH3-CH2-OH, a nonelectrolyte.
c) HCN, hydrocyanic acid, a weak electrolyte.

(a) Only ions.

(b) Only Molecules.

(c) Few ions.

(a) In this, only ions should be considered as it contains strong electrolyte.

(b) In this, only molecules should be considered as it contains non-electrolyte.

(c) In this, few ions should be considered due to hydrocyanic acid HCN, that contains weak electrolyte.

Therefore we can conclude that

(a) Only ions.

(b) Only Molecules.

(c) Few ions.

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Following are the solution to the given points:

Explanation:

In point a, the answer is only ions because of has a strong electrolyte.

In point b, the answer is the only molecules because of ethanol , it has a nonelectrolyte.

In point c, the answer is the few ions because of hydrocyanic acid HCN, which has a weak electrolyte.

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explanation:

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.