Laws Of Chemical Combination
There are three important laws of chemical combination. These are :
1.Law of conservation of mass (or matter),
2.Law of constant proportions, and
3.Law of multiple proportions.
The laws of chemical combination are the experimental laws which have been formulated by scientists after performing a large number of experiments involving various types of chemical reactions. These experimental laws ultimately led to the idea of 'atoms' being the 'smallest unit' of matter. In fact, the laws of chemical combination played a significant role in the development of Dalton's atomic theory of matter.In this class we will study only two laws of chemical combination : the law of conservation of mass, and the law of constant proportions. The third law of chemical combination, the law of multiple proportions,will be studied in higher classes.
Notes
Atoms and Molecules - Notes
2. Monovalent Cations (Cations Having a Valency of 1+)
Show Notes
3. Divalent Cations (Cations Having a Valency of 2+)
Show Notes
4. Trivalent Cations (Cations Having a Valency of 3+)
Show Notes
6. an example, let us give the significance of symbol C
Show Notes
7. Formulae of Some Molecular Compounds
Show Notes
9. Molecular Formulae of Some Common Elements
Show Notes
10. Explanation of the Law of Conservation of Mass
Show Notes
11. 2. A Negatively Charged Ion is Known as Anion
Show Notes
13. As an example, let us give the significance of the formula H
2O
Show Notes
15. Simple Ions and Compound Ions (Polyatomic Ions)
Show Notes
21. Gram Atomic Mass And Gram Molecular Mass
Show Notes
28. 1. A Positively Charged Ion is Known as Cation
Show Notes
34. Divalent Anions (Anions Having a Valency of 2-)
Show Notes
35. Molecular Masses of Some Common Elements
Show Notes
37. Explanation of the Law of Constant Proportions
Show Notes
39. Significance of the Formula of a Substance
Show Notes
42. Symbols Derived from Latin Names of the Elements
Show Notes
45. Valencies of Some Common Metal Elements Valencies of Some Common Non-Metal Elements
Show Notes
46. Atomic Masses of Some Common Elements
Show Notes
47. Writing Of Formulae Of Molecular Compounds
Show Notes
50. Writing Of Formulae Of Ionic Compounds
Show Notes