Where, and how does hydrogen-bonding occur? Does such bonding occur in $HCF_3$?

You know the normal boiling point of water. The normal boiling point of hydrogen sulfide is $-60$ $""^@C$; that of hydrogen selenide is $-41.2$ $""^@C$; that of hydrogen telluride is...

To get the atomic mass of an element, we must take a weighted average of the atomic masses of its . That is, we multiply the atomic mass of each...

I would guess, $H_2Te$ $>$ $H_2Se$ $>$ $H_2S$ $"<<"$ $H_2O$ with respect to melting point. But as a chemist, as a physical scientist, you are required to interpret data,...

Hydrogen occurs where hydrogen is directly bound to a strongly electronegative element, typically oxygen or fluorine. In these circumstances, the electronegative element polarizes electron towards itself to give bond polarity,...

See this You should also compare the boiling points of $NH_3$, $OH_2$, and $HF$, with the hydrides of the lower Group. i.e. $PH_3, SH_2$ etc. The normal boiling points...

And three molecules may be used as exemplars: $H_2O$; $NH_3$; and $HF$....and a special type of bond polarity, of charge separation operates...... For each molecule we could represent the dipoles,...

The stoichiometrically balanced equation tells us unequivocally that $1$ $mol$ dihydrogen reacts with $0.50$ $mol$ dioxygen to give $1$ $mol$ water. $"Moles of dihydrogen"$ $=$ $(58.1*g)/(2.02*g*mol)$ $=$ $28.7*mol$ $H_2$ $"Moles...

Trying to present a possible Answer We know that the molar mass of carbon and hydrogen are $C=12"g/mol" and H = 1"g/mol"$ When Carbon Hydrogen mass ratio is 11.89 The...

We thus predict that hydrogen sulfide would have a formula of $H_2S$, an analogue of the popular $H_2O$ molecule.

Whereas dipole-dipole interaction operates for $"methylene chloride"$, and dispersion forces are the primary intermolecular force in $"carbon tetrachloride"$. And note that dispersion forces operate between all molecules, but in $HF$...