Originally, a mole was the quantity of anything that has the same number of particles found in 12.000 grams of carbon-12. That number of particles is Avogadro's number, which is roughly 6.02x1023. A mole of carbon atoms is 6.02x1023carbon atoms. A mole of chemistry teachers is 6.02x1023...
Conservation of baryon and lepton number parallels conservation of atoms in chemistry; the number of atoms of a particular species in the reactants must equal the number of those atoms in the products. These laws of conservation valid for interaction involving matter particles are indeed valid for...
What is mole in Chemistry with example? A mole corresponds tothe mass of a substance that contains 6.023 x 1023particles of the substance. The mole is the SI unit for the amount of a substance. Its symbol is mol. By definition: 1 mol of carbon-12 has a mass of 12 grams and contains...
In order to concentrate a solution, either more solute particles must be added or some solvent must be removed. If the solvent is nonvolatile, a solution may be concentrated by evaporating or boiling off solvent. Dilutionsare made by adding solvent to a more concentrated solution. It's common...
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Chemistry is the branch which deals with the detailed study of matter, its properties, how and why atoms/substanced combine or separate to form other substances. Understand all the basic concepts of Organic, Inorganic, and Physical Chemistry with detaile
An atom has three types of very tiny particles called protons, neutrons and electrons. The center of an atom is called the nucleus, and it is made up of protons and neutrons. The electrons in an atom fly around and above the nucleus in a cloud-like formation. The protons have a positiv...
Salt particles dissolving in water is an example of chemical change. True | False 2. Dark matter is anything that occupies space and has mass. True | False 3. The visible light emitted by the Sun is an example of matter. True | False 4. A microscope is an important optical ...
Discover the benefits and applications of silica fume in concrete. Enhance strength and durability with this essential construction material.
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