What is a reaction that occurs when an acid and a base are mixed

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.