Law of conservation of mass- definition, formula, equation, examples

Law of conservation of mass

Who is Mikhail Vasilyevich Lomonosov? Mikhail Vasilyevich Lomonosov (November 10, 1711- April 15, 1765) is a Russian scientist, polymath, and writer who is widely known for his contributions in chemistry by the discovery of the law of conservation of mass. Besides, he is also known for his contributions to astronomy as he was associated with … Read more

Dalton’s Atomic Theory- Postulates, Merits, Limitations

Dalton's Atomic Theory

Who is John Dalton? John Dalton (6 September 1766- 27 July 1844) is an English meteorologist, teacher, and chemist who postulated the atomic theory and is considered a pioneer in modern chemistry. John Dalton has made numerous contributions to different areas of science, but one of his most important contributions is the introduction of the … Read more

Balancing Chemical Equations- Methods, Steps, Examples

Balancing Chemical Equations

What are reactants? Reactants are substances or compounds that undergo a chemical change in a chemical reaction. Reactants are present on the left side of the arrow, indicating the progression of a chemical reaction. The number of reactants in a chemical equation might differ in different reactions. In some reactions, a single reactant can give … Read more

Hydrogen Bond- Definition, properties, types, formation, examples

Hydrogen Bond

Hydrogen Bond Definition A hydrogen bond is an attractive force between the hydrogen atom of one molecule bound and more electronegative atoms of the same molecule or other molecules. The hydrogen bond is weaker than a covalent bond, and thus, the bond length is longer. The hydrogen bond is denoted by a dotted line (…). … Read more

Covalent Bond- Definition, properties, types, formation, examples

Covalent Bond

Covalent Bond Definition The covalent bond is a type of chemical bond between the atoms of the same or different elements by the mutual sharing of pairs of electrons. Covalent bonding is the result of attractive forces between the electrons and the nuclei as well as the repulsive forces between the shared electrons. In a … Read more

Ionic Bond- Definition, properties, formation, examples, applications

Ionic Bond

Ionic Bond Definition The ionic bond is a type of chemical interaction or linkage as a result of electrostatic attraction between oppositely charged ions or atoms having different electronegativities. The ionic bond is one of the three major types of chemical bonds occurring between chemical units in order to reach a stable state. During the … Read more

Lewis Acids and Bases- Definition, Reactions, Examples, Applications

Lewis acids and bases

Definition of Lewis Acids and Bases Gilbert Newton Lewis (American, 1923) put forward a broader concept of acids and bases on the basis of electron transfer. This concept is called the Lewis concept. Lewis’s concept eliminates the necessity of the presence of hydrogen in acid, and it accepts not only Arrhenius and Bronsted-Lowry concept but … Read more

Acid vs Base- Definition, 16 Major Differences, Examples

Differences between Acid and Base

Differences between Acid and Base Image Source: Pinterest Basis Acid Base Arrhenius concept An acid is a substance that produces hydrogen ion (H+) as the only positive ion when mixed with water. A base is a substance that produces hydroxyl ion (OH–) as the only negative ion when mixed with water. Bronsted-Lowry Concept An acid … Read more

Cation vs Anion- Definition, 10 Major Differences, Examples

Differences between Cation and Anion (Cation vs Anion)

Cation Definition A cation is an atom or a group of atoms bearing one or more positive electric charges. Cations are formed in various ways, some of which are: When electrons are removed from neutral atoms or ions or other molecules. By the combination of positive ions with other molecules. By rupture of covalent when … Read more

Solute vs Solvent- Definition, 9 Major Differences, Examples

Differences between Solute and Solvent (Solute vs Solvent)

Solute Definition A solute is a substance that is added to a solvent to form a solution. The solute can exist in all three forms of matter as solid, liquid, or gas. In a homogenous mixture, the solute completely dissolves in another substance, and the solute is uniformly distributed throughout the solution. In a heterogeneous … Read more