1. Chemical Reactions and Equations
The chapter covers the concepts of chemical reactions and equations, detailing various reaction types including combination, decomposition, displacement, and double displacement reactions. It also emphasizes the importance of balancing chemical equations and introduces the concepts of oxidation and reduction in reactions. Essential experiments and activities illustrate these concepts, contributing to a thorough understanding of chemical transformations in everyday life.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- A complete chemical equation represents the reactants, products, and their physical states symbolically.
- A chemical equation should always be balanced to ensure the number of atoms of each type is the same on both sides of the equation.
- Combination reactions involve two or more substances combining to form a single product, while decomposition reactions involve a single substance breaking down into multiple products.
Key Concepts
- -- Chemical Reaction
- A process in which substances interact, leading to a change in their chemical composition.
- -- Balancing Chemical Equations
- Adjusting the coefficients in a chemical equation so that the number of atoms for each element is the same on both sides.
- -- OxidationReduction Reactions
- Reactions where one substance loses oxygen (is oxidized) while another gains oxygen (is reduced).
- -- Exothermic Reaction
- A reaction that releases heat, resulting in an increase in temperature of the surroundings.
- -- Endothermic Reaction
- A reaction that absorbs heat, leading to a decrease in the temperature of the surroundings.
- -- Precipitation Reaction
- A reaction that produces an insoluble compound, known as a precipitate.
Additional Learning Materials
Supplementary resources to enhance your learning experience.