Pure and Impure substances: Definition and Differences
A substance is a type of matter that has specific features and compositions. Substances are made up of atoms and molecules. Each substance has a specific weight and volume. It … Read more
A substance is a type of matter that has specific features and compositions. Substances are made up of atoms and molecules. Each substance has a specific weight and volume. It … Read more
A colloid is a heterogenous mixture in which particle size ranges between 1 and 100 nm. The colloidal state consists of two phases: a dispersed phase and a dispersion phase. … Read more
Nuclear reaction Nuclear reactions are the process in which two atomic nuclei or one atomic nucleus and a subatomic particle (such as a proton or neutron or high energy electron) … Read more
There are two different kinds of electrochemical cells: galvanic cells, which have spontaneous redox reactions that permit continuous electron flow through the conductor, converting chemical energy into electrical energy; and … Read more
Adsorption Adsorption is a surface phenomenon that involves the accumulation of molecular species on the surface rather than within the bulk of a solid or liquid. Adsorbate is the substance … Read more
The major difference between a primary cell and the secondary cell is that primary cells are the ones that cannot be charged but secondary cells are the ones that are … Read more
Physical adsorption, also known as physisorption, is a reversible phenomenon involving weak Van der Waals forces between adsorbate and adsorbent, whereas chemisorption is an irreversible phenomenon involving strong chemical interaction … Read more
Elements undergo chemical reactions to acquire a full outer shell of electrons, which will lead to a more stable energy state. This is accomplished through chemical bonding in which old bonds … Read more
What are Alkali metals? Elements of group IA are called alkali metals. The word alkali is derived from the Arabic word alquli, meaning ashes of plants, because the plant ashes … Read more