A chemical reaction is a process in which new substances are formed. The atoms you start with are regrouped into new substances that have different properties. It’s important to remember that the number of atoms before and after a chemical reaction always stays the same.
To better understand chemical reactions…
LET’S BREAK IT DOWN!
When substances undergo chemical reactions, their properties change.
All matter has properties, and those properties can be both observed, and recorded. Properties of matter can also be tested to help determine what the substance is. Examples of these properties are magnetism, flammability, density, and odor. Many other properties of matter exist and by examining a substance’s properties, it can help us predict how it may interact with other substances.