The Statue of Liberty is a landmark every American recognizes. The Statue of Liberty easily identified by its height, stance, and unique blue-green color. When this statue first delivered from France, its appearance was not green. It was brown, the …
The bright colors seen in an oil slick floating on water or in a sunlit soap bubble are caused by interference. The brightest colors are those that interfere constructively. This interference is between light reflected from different surfaces of a …
The food chain can be said as the straight and single pathway for the flow of energy in an ecosystem, through different species of organisms. Food web, on the other hand, is defined as the convoluted or complicated pathway of …
The Pidgeon process involves the reaction of magnesium oxide with elemental silicon at high temperatures to form pure magnesium: Si(s) + 2MgO(s) → Δ SiO2(s) + 2Mg(g) Although this reaction is unfavorable in terms of thermodynamics, the removal of the …
Mirrors, spherical or otherwise, operate on the principle that the angle of reflection of a ray of light equals the angle at which it strikes the mirror’s surface. That behavior is not affected by the medium in which the light …
Peroxides and superoxides are strong oxidizers and are important in chemical processes. Hydrogen peroxide, H2O2, prepared from metal peroxides, is an important bleach and disinfectant. Peroxides and superoxides form when the metal or metal oxides of groups 1 and 2 …
Convex Lens Magnified the given lens is convex lens. Concave Lens Diminished the given piece is concave lens. Plane glass plate To be of same size then it is a plane …
Many systems have evolved for excreting wastes that are simpler than the kidney and urinary systems of vertebrate animals. The simplest system is that of contractile vacuoles present in microorganisms. Flame cells and nephridia in worms perform excretory functions and …
Isomers are different chemical species that have the same chemical formula. Transition metals often form geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes …
In electromagnetism, charge density is the amount of electric charge per unit length, surface area, or volume. Volume charge density (symbolized by the Greek letter ρ) is the quantity of charge per unit volume, measured in the SI system in …