RULES OF "CHEMISTRY"

RULES
OF "CHEMISTRY"

Here are some general rules and principles in chemistry:

1. Law of Conservation of Mass: Matter cannot be created or destroyed in a chemical reaction. The total mass of the reactants is equal to the total mass of the products.

2. Law of Definite Proportions: A given compound always contains the same elements in the same fixed proportions by mass.

3. Law of Multiple Proportions: When two elements combine to form different compounds, the mass ratios of one element that combine with a fixed mass of the other element can be expressed as small whole numbers.

4. Atomic Theory: All matter is composed of atoms, which are indivisible and indestructible building blocks.

5. Periodic Law: The properties of elements are periodic functions of their atomic numbers.

6. Valence Shell Electron Pair Repulsion (VSEPR) Theory: Electrons in the valence shell of an atom repel each other, and their mutual repulsion determines the three-dimensional shape of molecules.

7. Octet Rule: Atoms tend to gain, lose, or share electrons in order to achieve a stable electron configuration with eight electrons in their outermost shell (except for hydrogen and helium, which follow the duet rule).

8. Electronegativity: The ability of an atom to attract electrons towards itself in a chemical bond.

9. Stoichiometry: The study of the quantitative relationships between reactants and products in a chemical reaction.

10. Solubility Rules: Guidelines used to predict the solubility of different compounds in water.

11. Acid-Base Theories: Various theories, including Arrhenius, Brønsted-Lowry, and Lewis, describe the behavior of acids and bases.

12. Oxidation-Reduction (Redox) Reactions: Reactions involving the transfer of electrons between species.