Una muestra de aire se encuentra originalmente a 23 grados centígrados. Si la presión y la masa se mantienen constantes, a que temperatura se debe enfriar el aire para: a. disminuir su volumen un 25%
b. disminuir su volumen hasta el 25% de su volumen original

Ibelieve the answer is weathering,hope my answer has you : ) 

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.

The answer is b. because when it leaves the bat, its bringing motion on where its going.

The lewis structure for co2 has a total of  16  valence electrons.  hoped i can i get brainliest