Fundamentals of Chemical Equations

TL;DR

Chemical equations are like recipes for chemical reactions, showing what you start with and what you end up with. They must be balanced, meaning the same number of each type of atom is on both sides of the equation. Balancing ensures that matter isn't created or destroyed during a chemical change, following the Law of Conservation of Mass.

1. The Mental Model

Think of a chemical equation as a precise instruction manual for a chemical change. It tells you exactly what ingredients (reactants) you need and what products you'll make, ensuring no atom is lost or gained in the process.

2. The Core Material

A chemical equation uses chemical formulas and symbols to represent a chemical reaction. On the left side, you have the reactants, which are the starting materials. On the right side