* Required Acid-base reactions can also be classified as which type of reaction? *

decomposition
double replacement
single replacement
synthesis

Inner peace.. jk it's  a stable electron configuration

Two cars collide, lock bumpers and move together after the collision.this collision is known as perfectly inelastic collision.

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other