Chemistry Glossary

15 Chemistry terms

On this glossary you can find some basic terms of chemistry.

Boiling Point
Noun
The temperature that an substance needs to get to turn from solid to gas.
Example: The mercury turn into gas when it get on 356,7 degrees.
en: Ponto de Ebulição
Chemical Property
Noun
A property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed.
Example: Combustibility is an important chemical property to consider when choosing building materials.
en: Propriedade Química
Color and luster
Sentence
Colour is the first appearance of a substance. Luster is the way the surface of a substance looks in the light.
Example: Gold is very lustrous and it color is gold.
en: Cor e brilho.
Combustility
Noun
Combustibility is the ability of a substance to react quickly with oxygen to produce heat energy and light.
Example: Used for testing horizontal combustibility of various textile and show with flame spread rate.
en: Combustibilidade
Conductivity
Noun
Conductivity is the ability of a substance to conduct electricity or heat energy. The substance that conducts electricity or heat is called conductor.
Example: The gold is an excellent conductor of electricity, so it have a high conductivity.
en: Condutividade
Crystal Shape
Noun
Is when the particles from a substance line up in a pattern, this way giving the substance sharp edges forming the crystal shape from the object.
Example: The Quartz have a crystal shape, with a smooth surface and edges.
en: Forma cristalina
Density
Noun
Density is the amount of mass in a given volume of a substance.
Example: When the king said to Arquimedes to see if his crown was entire of gold Arquimedes saw that the crown drown in the water in a different way as if the crown was entirely of gold, so then Arquimedes discovered the density.
en: Densidade
Ductility
Any solid that can be stretched into a long wire is said to be ductile.
Example: The ductility of copper allows it to become a thin wire.
en: Ductilidade
Hardness
Noun
Is the condition of an material of being hard.
Example: These alloys are characterized by their extreme hardness.
en: Rigidez.
Malleability
Noun
The property of being physically malleable; the property of something that can be worked or hammered or shaped without breaking.
Example: You change the shape and size from the aluminum paper easily, because it is very malleable.
en: Maleabilidade
Melting Point
Noun
The temperature at which a given solid will melt.
Example: The gold turn from solid to liquid at 1 064 degrees.
en: Ponto de Fusão
Physical Property
Noun
A property (as color, hardness, boiling point) of matter not involving in its manifestation a chemical change.
Example: We can say three physical properties from the water: it is transparent, is a fluid and boils at 100 degrees on the sea level.
en: Propriedade Física
Reaction with acid.
Noun
Is a property form a substance to change its appearance or composition when it is mixture with acid.
Example: When an anti acid is mixture with an acid it react with the acid and happens a chemical reaction.
en: Reação com ácido.
Solubility
Noun
Solubility is the maximum amount if substance that can be dissolve in water.
Example: The salt in soluble in the water, however until certain quantity.
en: Solubilidade
Texture
Noun
The feel of a surface or a fabric.
Example: The wall had a smooth texture.
en: Textura.