Answer:
a) dispersion forces, dipole-dipole forces, hydrogen bonds
b) dispersion forces
c) ion-ion interparticle forces, hydrogen bonds, dipole-dipole forces
d) metallic bonds
Explanation:
The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles(Chem Purdue). Dipole forces exists in all molecules but not in metals.
The intermolecular forces present in each substance must be broken before the stated process can occur.
The nature of intermolecular forces in each substance has been shown in the answer section.
For ammonia, the dispersion forces, dipole-dipole forces and hydrogen bonds must be degraded before liquid ammonia begins to boil.
For solid phosphorus which is non polar, only dispersion forces needs to be broken.
To dissolve CsI in HF, ion-ion interparticle forces of CsI must be broken while the dipole-dipole forces, dispersion forces and hydrogen bonds between HF molecules must be broken.
Potassium metal is a pure metal hence only metallic bonds must be broken in order to melt the solid.
At room temperature means in their original state without undergoing any changes.
At room temperature:
milk is liquid
helium is gas
granite is solid
oxygen is gas
steel is solid
gasoline is liquid
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The potential energy means it causes the object to slow down on the ramp. Potential energy generally means to slow an object.
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Since in the forward reaction, H2S is giving a proton away (being the acid) and then CH3NH2 accepting that proton given (being the base).
