Dissolution Process
Dissolving Dissolving means that the solute diffuses into the solvent and mixes. It is a common case that salt or sugar is dissolved in water. Solvents are often liquid, mostly water. The…
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Chemistry Simulation
The principle of air conditioner
The air conditioner Air conditioner work by using ‘evaporative heat'(a phenomenon that absorbs the surrounding heat when the liquid evaporates). The indoor unit suddenly expands the compressed refrigerant through a narrow hole.…
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Ionic Bond
Formation and energy of the ionic bonds Metal atoms have strong properties to lose electrons and become cations. On the contrary, non-metallic atoms have strong properties to obtain electrons and become anions.…
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Law of Definite Proportions
Law of Definite Proportions In a reaction where hydrogen gas is burned to produce water, two hydrogen atoms combine with one oxygen atom. That is, hydrogen gas and oxygen gas always react…
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Covalent Bond
What is Covalent Bond? Covalent bond is a bond formed by atoms, each of atom creates an electron pair and shares it. Because each other’s electrons are shared in pairs, the number…
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Structure of Ice – 3D VR
Looking through the VR device, you can observe the 3-dimensional molecular bonding structure of ice.
Alkane Compound
Press the ‘C’ button to add carbon, press the ‘H’ button to add a hydrogen atom, and press the ‘O’ button to add an oxygen atom. The added atoms are randomly placed…
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Surface Tension
Surface tension Surface tension is a type of force that acts to minimize the surface of liquids. Molecules inside the liquid are pulling together with other molecules around them. At the surface…
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Chemical Change of Candle
Paraffin, the main ingredient of candles Paraffin, the main ingredient of candles, is alkane hydrocarbons in which 20 to 40 carbon atoms are linked in a chain. It does not dissolve in…
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Charle’s Law
Charle’s Law Assuming constant pressure, increasing the temperature of the gas will speed up the molecular motion. As the gas often collides with the vessel wall, the volume increases. Conversely, if you…
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Boyle’s Law
Boyle’s Law If you press the piston of a syringe containing a certain number of gas molecules, the space of the gas molecules is reduced. Therefore, the gas molecules collide with the…
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