RULES OF "CHEMISTRY"
RULES OF " CHEMISTRY" Here are some general rules and principles in chemistry: 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. Law of Definite Proportions: A given compound always contains the same elements in the same fixed proportions by mass. 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. Atomic Theory: All matter is composed of atoms, which are indivisible and indestructible building blocks. Periodic Law: The properties of elements are periodic functions of their atomic numbers. 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. Octet Rule: Atoms tend...