Unit 4 is about toxins which are things that interact with living organisims and can cause harm. Toxins can enter the body by inhaling them, ingesting them or through the skin. Then we talked about how to interpret a chemical equation. there is an example pictured below.
Practice Problems
1. Reactants are the things that combine to form something in a chemical equation. The thing that it forms is called the product.
3. A toxic substance is something that can enter the body and cause harm.
Lesson 2
Lesson two talks more about chemical equations. Chemical equations allow chemists to track and predict changes in matter.
Practice Problem
3A. A solid and an aqueous solution combine to form an aqueous solution and gas.
Looks good! short and sweet
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