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Answers to 2023-2024 Chem328 Review HW for Sig Figs and Fundamental Principles of Chemistry homework handout.
1) Matter ( I call them particles) and Energy
2) All substances are composed of particles that are in constant motion and sometimes collide/interact.
3a) Conservation of Mass - In a physical process and/or chemical reaction, mass is neither created nor destroyed (i.e. has to be conserved/accounted for).
3b) Conservation of Energy - In a physical process and/or chemical reaction, energy is neither created nor destroyed (i.e. has to be conserved/accounted for). Also called First Law of Thermodynamics
4) Coulomb's Law ( I called it Coulombic Force, CF).
5) When particles collide, they can either
a) stay same - called physical change or
b) reorganize/rearrange - called chemical change (also called chemical reaction).
6)