Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 5Contains Standard content
Chemical Equations, Types of Chemical Reactions, Energy Changes and Corrosion
An iron gate turns brown, milk turns sour, and a match bursts into flame. In each case, new substances are made. In this chapter we learn how to see a chemical reaction, how to write it as an equation, and how to balance the equation. Then we meet the main types of reactions, we see which ones give out heat, we find out why iron rusts, and we calculate how much of a substance a reaction makes. Python helps us to balance and to count.
4 courses
