탄화수소 Hydrocarbon

Covalent Bonds of Hydrocarbon

When atoms combine to form molecules, atoms generally each lose, gain, or share valence electrons until they attain or share eight. A valence electron is the outer shell electron that is associated with an atom. In a covalent bond, A…
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염화나트륨의 이온 결합 NaCl Ionic Bond

Ionic Bond – NaCl

Compounds are referred to as ‘ionic’ or ‘covalent’ depending on the type of bonding that they exhibit. In ionic bonding, a transfer of electrons from one atom to another creates two ions with opposing electric charge. This transfer is generally…
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온도계 Thermometer


A thermometer is a device used to measure temperature. There are several types of thermometers, depending on how the temperature is measured. Thermal Expansion: Uses the principle that the volume expands with increasing temperature. Mercury thermometer, alcohol thermometer, bimetal thermometer.…
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상평형 Three Phase Equilibrium

Three Phase Equilibrium

All naturally occurring elements CAN exist as a solid, liquid, or gas, and all will have at least one triple point. (except Helium) The triple point is the unique combination of temperature and pressure at which solid phase, liquid phase,…
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알칸(알케인) 탄화수소 화합물 Alkane Compound

Alkane Compound

Alkanes are chemical compounds that consist only of the elements carbon and hydrogen linked exclusively by single bonds. Each carbon atom forms 4 bonds (either C-H or C-C bonds). Each hydrogen atom is connected to a single carbon atom, by…
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