Atoms are much too small to be seen; hence experiments to find out their structure and behavior have to be conducted with large numbers of them. From the results of these experiments we may attempt to construct a hypothetical model of an atom that behaves like the true atom. Molecules consist of one or more atoms… Continue reading Atoms and Molecules Definition
Month: April 2022
Atoms and Molecules
What is an Atom? Atoms are defined as “the basic building blocks of matter”. It is the smallest constituent unit of matter that posses the properties of the chemical element. Atoms don’t exist independently, instead, they form ions and molecules which further combine in large numbers to form matter that we see, feel and touch.
Salts
Salts are chemical compounds made by the reaction between acids and bases. When an acid reacts with a base, a salt is formed. Salts have characteristic and consistent properties different from their ingredient elements. They are ionic compounds, made of metal cations and organic or inorganic anions. Hence, they are generally soluble in water. They are… Continue reading Salts
What are Bases
Base is a chemical compound that consists of OH– ions and accepts protons. Base in Chemistry are those compounds that turn red litmus blue and when reacted with acid they neutralize the reaction to give salt and water. The pH value of the base is greater than 7. Bases are bitter in taste and slippery in… Continue reading What are Bases
What is Acids ?
An acid is a chemical species that donates protons or hydrogen ions and/or accepts electrons. Most acids contain a hydrogen atom bonded that can release (dissociate) to yield a cation and an anion in water. The higher the concentration of hydrogen ions produced by an acid, the higher its acidity and the lower the pH of the solution. The word acid comes from… Continue reading What is Acids ?
Acids, Bases, & Salts
Acids, Bases, and Salts Class 10 Notes pdf Acids Bases 1. Sour in taste. 1. Bitter in taste. 2. Change the color of the blue litmus to red. 2. Change the color of the red litmus to blue. Acid-Base Indicators: Note: A stain of curry on a white cloth becomes reddish-brown when soap, which is… Continue reading Acids, Bases, & Salts
Frequently Asked Questions – FAQs
What is meant by a chemical reaction? A Chemical Reaction is a process that occurs when two or more molecules collide with the right orientation and sufficient force to form a new product. In this process breaking and forming bonds between atoms takes place. Compounds that interact to produce new compounds are called reactants whereas… Continue reading Frequently Asked Questions – FAQs
Important Points to Remember
In a chemical change, a new compound is formed but in a physical change, the substance changes its state of existence. Atoms or ions or molecules which react to form a new substance are called reactants; the new atoms or molecules formed are products. A chemical reaction follows the law of conservation of mass. That… Continue reading Important Points to Remember
Types of Chemical Reactions
The basis for different types of reactions is the product formed, the changes that occur, the reactants involved and so on. Different types of reactions are Combustion reaction Decomposition reaction Neutralization reaction Redox Reaction Precipitation or Double-Displacement Reaction Synthesis reaction 1. Combustion Reaction A combustion reaction is a reaction with a combustible material with an oxidizer… Continue reading Types of Chemical Reactions
Chemical Equations
Due to the vast amounts of chemical reactions happening around us, a nomenclature was developed to simplify how we express a chemical reaction in the form of a chemical equation. A chemical equation is nothing but a mathematical statement which symbolizes the product formation from reactants while stating certain condition for which how the reaction… Continue reading Chemical Equations