What is the predominant intermolecular force in the liquid state of each of these compounds: hydrogen fluoride (hf), carbon tetrafluoride (cf4), and hydrogen sulfide (h2s)?

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.