a) What is distilled water? What are some examples of purified water? How does water purification by distillation and reverse osmosis work? b) What is the concept of electric current? c) Research on the functioning of the incandescent lamp and the fluorescent lamp?

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins