How do the metal aluminum coils in an air conditioner keep a house cool?

Which metal exist in liquid state and can be cut with knife ?

Areaction in which products can react to re-form reactants is

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.