Science

Addition and Subtraction of Surds A root of a positive real quantity is called a surd if its value cannot be exactly determined. It is…

Copper(II) Nitrate Definition Copper(II) nitrate is the chemical compound with the formula Cu(NO3)2, which is commonly referred to simply as copper nitrate, the anhydrous form…

Aeschynite-(Nd) is a rare earth mineral of neodymium, cerium, calcium, thorium, titanium, niobium, oxygen, and hydrogen with formula: (Nd,Ce,Ca,Th)(Ti,Nb)2(O,OH)6. Its name comes from the Greek…

About Infection Definition Infection is the presence of microorganisms causing damage to body tissues, usually in the presence of acute inflammation (pain, swelling, redness, heat,…

Prime and Composite Numbers A prime number is a whole number that only has two factors which are itself and one. A composite number has…

Active Transport Definition Active transport is the movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is,…

Aeschynite-(Ce) is a rare earth mineral of cerium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen with the formula: (Ce,Ca,Fe,Th)(Ti,Nb)2 (O,OH)6. It is a black…

Alveolar Process Definition Alveolar process is the ridge on the surfaces of the upper and lower jaws containing the tooth sockets. It is also called…

Converting Fractions to Scientific Notation Scientific notation is used to express very large or very small numbers. A number of scientific notation is written as…

Silver Nitrate Definition Silver nitrate is a poisonous, clear, crystalline compound that darkens when exposed to light. It is an inorganic compound with chemical formula…

Periodontitis Definition Periodontitis is a serious gum infection that damages the soft tissue and bone that supports the tooth. The word “periodontitis” literally means “inflammation…

Aerugite is a rare complex nickel arsenate mineral with a variable reported formula: Ni(AsO4)2AsO6. It forms green to deep blue-green trigonal crystals. It has a…