Temos a Sensação QUENTE quando ganhamos ou perdemos calor? E quando temos a Sensação FRIA ganhamos ou perdemos calor?

If i make a solution by adding 83grams of sodium hydroxide to 750ml i’d water what is the molarity of sodium hydroxide

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms