An atom is the defining structure of an element, which cannot be broken by any chemical means. The atomic symbol has three parts:- The symbol X: the usual element symbol The atomic number A: equal to the number of protons The mass number Z: equal to the total number of protons and neutrons in an… Continue reading Atoms
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Laws of Chemical Combination
Chemical Reactions In a chemical reaction, two or more molecules interact to produce new compounds and are called reactants, whereas the newly formed compounds are called products. In a chemical reaction, a chemical change must occur, which is generally observed with physical changes like precipitation, heat production, colour change, etc. Law of conservation of mass… Continue reading Laws of Chemical Combination
Introduction
Atoms and molecules are responsible for forming tiny sand particles, gargantuan black holes and everything in between. The atom is the most fundamental unit of matter, making up everything that we see around us. It is extremely small, measuring in at less than 0.1 to 0.5 nanometers.
Tyndall Effect
Tyndall effect is the scattering of light by particles in a colloid or else particles in a very fine suspension. e.g.It can be observed when sunlight passes through the canopy of a dense forest. Dispersed phase The solute-like component of the dispersed particles in a colloid form the dispersed phase. Dispersion medium The component in which the… Continue reading Tyndall Effect
Solubility
Unsaturated solutions, on the other hand, are those that contain less solute than the maximum that can be dissolved. A saturated solution is one that contains the maximum quantity of solute that can be dissolved. The amount of a solute that dissolves in a solvent is known as its solubility. The majority of solutes become… Continue reading Solubility
Solutions
Solutions and their properties Anything dissolved in a solution is referred to as a solute. In a fluid solution, the amount of solvent always outweighs the amount of solute. Two of the most prevalent solutes in our daily lives are salt and water. Salt is the solute because it dissolves in water. Examples of solute… Continue reading Solutions
Physical vs Chemical Changes
The nature of the substance, the particles that make up it, and the quantity of particles all stay unaltered after a physical change. Chemical changes result in new compounds with different properties from the original ones, as well as new particles and maybe altered particle numbers. Physical and chemical changes A substance is said to… Continue reading Physical vs Chemical Changes
Mixtures And Its Types
A mixture in chemistry is a substance made up of two or more unrelated chemical components. A mixture is a physical combination of two or more distinct substances that can take the form of solutions, suspensions, or colloids. Crude oil: A mixture of organic compounds (mainly hydrocarbons) Seawater: A mixture of various salt and water.… Continue reading Mixtures And Its Types
Elements
Elements are species of atoms which have the same number of protons in their atomic nuclei. Elements are represented by symbols e.g.Hydrogen (H), Boron (B), Carbon (C), Silicon (Si) etc. Metals Metal is a solid material which is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity. Examples: Aluminium, Copper, Iron, Tin, Gold Nonmetals Non-metals are… Continue reading Elements
Compounds
Compounds are the substances consisting of two or more different types of elements in a fixed ratio of its atoms. Difference between mixtures and compounds Compound Mixture Compounds are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances. Compounds fall… Continue reading Compounds