Jonathan is helping his mother make soap. She asked him to add the base to the mixture to help form the soap. He looks to the chemical closet and sees three bottles, one labeled NaOH, another labeled HCl, and the last one labeled HNO2. What is the chemical name for the correct compound Jonathan needs to add to the mixture?

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .