Atoms and Molecules Complete Chapterš„| CLASS 9th Science | NCERT covered | Prashant Kirad
Exphub 9th &10thć»93 minutes read
Prashant Bhaiya offers solutions for upcoming exams, focusing on key concepts like valency and atomic mass within the "Atoms and Molecules" chapter, providing memory techniques and practical examples to explain the Law of Conservation of Mass and the Law of Constant Proportion, vital for understanding Dalton's atomic theory and the modern-day symbol of elements.
Insights
- Prashant Bhaiya focuses on "Atoms and Molecules" for upcoming exams, emphasizing valency, atomic mass, and memory techniques to cover the chapter within 1.5 hours.
- The lecture delves into the historical background of atoms' discovery by Maha Rishi Kannada and Greeks, Antony's laws of chemical combination, the Law of Conservation of Mass, and practical examples to illustrate these concepts.
- Detailed discussions on Dalton's atomic theory, the law of constant proportion, atomic mass calculations, and the importance of valency in naming compounds provide a comprehensive understanding of fundamental chemistry principles.
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Recent questions
What is valency in chemistry?
Valency is the combining capacity of an element.
What is the Law of Conservation of Mass?
The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction.
What is atomic mass in chemistry?
Atomic mass is the mass of an atom of a chemical element.
What are molecules in chemistry?
Molecules are groups of atoms chemically bound together.
What is the Law of Constant Proportion?
The Law of Constant Proportion states that elements in compounds maintain fixed mass ratios.
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