Calcium, as a metal, is used as a reducing agent in preparing other metals and as an alloying agent. Calcium compounds are widely used to build stone, to make cement, as a soil conditioner and in water treatment to reduce acidity. It is also essential to all living things because it is the main component of bone.Continue Reading
Calcium is the fifth element and the third-most abundant metal in the Earth’s crust. The distribution of calcium is very wide. In fact, it is found in almost every terrestrial area in the world. It is not found alone in nature, but it occurs abundantly as limestone, gypsum, fluorite and apatite. This element is essential for the life of plants and animals. In fact, it is present in the animal’s skeleton, in teeth, in the egg’s shell, in the coral and in many soils. It is also contained in the soft tissue, in fluids within the tissue and in the structure of every animal’s skeleton.
Calcium is the most abundant metal in the human body. It is the main constituent of bones and teeth, and it has key metabolic functions. It is sometimes referred to as lime. It is most commonly found in milk and milk products, but also in vegetables, nuts and beans. It also assists the functions of nerves and muscles.Learn more about Chem Lab
The barrel on a Bunsen burner is the metal tube that is screwed onto the burner’s base. It contains the air intake openings that let air into the burner when uncovered and stop the entry of air when shut. The barrel is about 5 inches long.Full Answer >
Chromium-vanadium steel is an alloy made of iron with carbon, chrome and vanadium added to improve the properties of the metal. These alloys vary by percentage of additives; they commonly are stronger at high temperatures.Full Answer >
A cork borer is a metal tool often found in biology and chemistry laboratories. It is used for boring holes in corks or rubber stoppers to insert glass tubing. It consists of a plated tubing with precision ground cutting edges.Full Answer >
The parts of the Bunsen burner include the barrel, the collar, the air hole, the gas hose and a metal base. The barrel is a long tube that raises the flame to a more comfortable working height. It makes it easier to see the hottest part of the flame, which is blue, and the cooler part, which is bright yellow. Adjusting the gas and/or air flow changes the temperature and configuration of the flame.Full Answer >