Chemical Equations and Reactions

Chemical Equations and Reactions

Chemical equations are symbolic representations of chemical reactions that show reactants converting into products while obeying the law of conservation of mass. This topic covers how to write, balance, and interpret equ…

• A chemical reaction is a process where reactants change into new substances called products.
• Atoms are neither created nor destroyed in a chemical reaction — they are only rearranged.
• Observable signs of a reaction: colour change, gas evolution, precipitate formation, temperature change, smell change.

~15 min · full explanation, examples & memory tricks in the app