There are four laws of chemical combination which describe the general features of a chemical change. Although research has shown that these laws are only approximately correct, they still form the basis of chemistry.
1. Law of conservation of mass.
2. Law of definite proportion.
3. Law of multiple proportion.
4. Law of reciprocal proportion.
1. Law of conservation of mass states that matter is neither created nor destroyed during chemical reaction but changes from one form to another.
2. Law of definite proportions states that all pure samples of a particular chemical compound contain similar elements combined in the proportion by mass.
3. Law of multiple proportions states that if two elements. A and B. combine to form more than one chemical compound, then the various masses of one element, A, which combine separately with a fixed mass of the other element, B, are in simple multiple ratio.
4. Law of reciprocal proportions states that the masses of several elements, A, B, C, which combine separately with a fixed mass of another element, D, are the same as, or simple multiples of, the masses in which A, B, and C, combine with one another.
0 Comments
Thank you