Solutions and Separating Mixtures
Not everything is a pure substance. Most of what you meet each day, from ocean water to the air, is a mixture, and mixtures can be pulled apart again by simple physical methods. Knowing how solutions form and how to separate a mixture is practical chemistry that shows up on nearly every science test. This […]
Bonding and Molecules
Atoms rarely travel alone. They join together into molecules and compounds, and the way they join, the chemical bond, decides almost every property of the material that results. Understanding bonding explains why salt is brittle, why water sticks together, and why metals conduct electricity. This lesson covers why atoms bond and the main types of […]
