How does the quantum theory of atoms explain the nature of the emission-line spectrum of hydrogen

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

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.