When an acid reacts with a metal, hydrogen gas (H2) is usually liberated. The reaction between an acid and a metal is a type of single-displacement or single-replacement reaction, where the more reactive metal displaces hydrogen from the acid, forming a metal salt and…
Featured Articles on: CHEMISTRY
Why should curd and sour substances not be kept in brass and copper vessels?
Curd and sour substances should not be kept in brass and copper vessels because these metals can react with acidic foods, leading to potential health hazards. The main concern is the leaching of toxic metals into the food or liquid being stored, which can contaminate…
Olfactory Indicators
Olfactory indicators, also known as smell indicators or odor indicators, are substances that change their smell in the presence of certain chemicals or conditions. They are commonly used in chemistry experiments to detect the presence or absence of specific gases or to …
Understanding Chemical Reactions and Equations
Get ready to embark on a journey through the fascinating realm of chemical reactions and equations, where every reaction is a symphony of atoms dancing to the tunes of nature.
From Kaṇāda to Rutherford: Tracing the Evolution of Atomic Theory
The evolution of atomic theory is a long and winding road that has been travelled by some of the greatest minds in history. It began with the ancient Indians in 600 BC who gave the concept of “Parmanu” to Greeks who first proposed that matter was made up of tiny, indivi…
10 Examples of combination reactions
1. The reaction between hydrogen gas and oxygen gas to form water: 2H2 + O2 → 2H2O 2. The reaction between iron and sulfur to form iron sulfide: Fe + S → FeS 3. The reaction between magnesium and oxygen to form magnesium oxide: 2Mg + O2 → 2MgO 4. The reaction between…
Periodic table
A periodic table is a tabular arrangement of chemical elements organized by their atomic number, electron configuration, and recurring chemical properties. The periodic table is one of the most important tools in chemistry, and it is used by scientists and engineers…
Chemical Fertilizer vs. Organic Fertilizer
A popular topic among agriculture specialists and home gardeners these days is the furore on organic fertilizer vs. chemical fertilizer. Now each fertilizer certainly has its pros and cons, but before we delve deeper into that, let us first make a few…
Liquid Organic Fertilizer
Using organic fertilizers is a widely accepted practice in the agricultural industry. Farmers use them to cultivate their fields and row crops, winemakers utilize them for growing grapes, and horticulturists apply a liberal dose of these during the landscaping of…
Characteristics of a chemical reaction.
A chemical reaction generally has one or more of the below-mentioned characteristics. Change in state Change in colour Evolution of gas Change in temperature Appearance of light Formation of Precipitate 1> Change in stateCertain chemical reactions are featured with a…
What is a Chemical Reaction?
A process in which one or more substances get transformed to produce new substance or substances is called a Chemical Reaction. A chemical reaction involves changes in the position of electrons of atoms by restructuring chemical bonds, with no changes to the nuclei of…





