What part of the atom is involved in chemical reactions? neutrons
protons
electrons
nucleus

What are the percent by mass of copper in penny lab

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

Which form of relativism states that people rely on their own standards of right and wrong when making a decision?