Rate of chemical reactions The rate of a chemical reaction is a measure of how quickly reactants are converted into products. It is usually expressed in terms of the rate at which a reactant is consumed (or a product is formed) over a period of time. The rate of a reaction can be affected by …
This reaction involves the transfer of electrons, with the oxygen atoms gaining electrons and the iron atoms losing electrons. The term “redox” is derived from the words “reduction” and “oxidation,” which refer to the gain and loss of electrons, respectively. The oxidation of iron (Fe) to iron(III) oxide (Fe2O3) is an example of a redox …
The oxidation number of an atom in a compound can be determined by using a set of rules, such as the following: The oxidation number of an atom in a neutral element (e.g., H2, O2, Cl2) is zero. The oxidation number of a monatomic ion is equal to its charge. The oxidation number of a …
Oxidation number is a number assigned to an atom in a molecule which represents the degree of oxidation of that atom. Oxidation numbers are typically written as a superscript to the right of the symbol for the element. The following are examples of oxidation numbers: Oxygen in its elemental form has an oxidation number of …
Oxidation: Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion. Oxidation reactions involve the transfer of electrons from one species to another. Examples of Oxidation: Combustion of ethanol: C2H6O + 3O2 → 2CO2 + 3H2O Rusting of iron: 4Fe + 3O2 → 2Fe2O3 Oxidation of Glucose: …
Oxidation and Reduction – ഓക്സീകരണവും നിരോക്സീക്കരണവും Read More »
Balancing of chemical equation means that the number of atoms of each element is equal on both the sides of the equation. For example: 2H2 + O2 → 2H2O The equation is already balanced, since there are two hydrogen atoms on both sides and two oxygen atoms on both sides. Magnesium – Mg + 2HCl …
Valency is the number of chemical bonds that an atom can form with other atoms. This information can be used to determine the chemical formula of a compound, which is the ratio of the elements in the compound. For example, if an atom has a valency of 2, it typically forms a compound with another …
From valency to chemical formula – സംയോജകത മുതൽ രാസസൂത്രത്തിലേക്ക് Read More »
Valency in chemistry is a measure of how many chemical bonds an atom can form. It is related to the number of electrons in the outer shell of an atom, and is determined by the number of protons in the nucleus. For example, Hydrogen has one valence electron and can form one bond, so its …
Polar compounds are molecules that have an uneven distribution of electrons, making one end of the molecule more positive than the other. This creates a dipole moment, where the positive end of the molecule is attracted to the negative end of another molecule. Examples of polar compounds include water, ethanol, acetic acid, and ammonia.
Polarity, in chemistry, is a separation of electric charge leading to a molecule or its chemical groups having an overall negative or positive charge. Examples of molecules exhibiting polarity include water, ammonia, and hydrogen chloride. Polar molecules interact through dipole–dipole intermolecular forces and hydrogen bonds.