Presentation on theme: "II Parcial. Atom (Átomo): The smallest and basic building block of Matter. Element(elemento): pure substance that can´t be broken into smaller pieces."— Presentation transcript:
Atom (Átomo): The smallest and basic building block of Matter. Element(elemento): pure substance that can´t be broken into smaller pieces Molecule(molécula): Group of Atoms transforming into a new substance, with new properties and characteristics Compound (compuesto): Substance formed by two or more elements. chemical formula (formula química) the amount of element atoms on a compound Ratio(relación): the difference between each compound´s elements Mixture (mezcla): two substances not chemically combined Vean de esta forma, los que entienden relaciones Atom : Element :: Molecule : Compound
The basic difference is that, impure substances are always mixtures, they are never compounds or elements. Si el examen tiene una pregunta como: Salt (NaCl), Oxygen (O), Sugar (C 12 H 22 O 11 ) etc. Es una substancia pura, y elemento o compuesto. Si salen comidas, puños de cosas, aire, mar, ese tipo de cosas son mezclas o sustancias impuras.
Differences of this terms are that elements are substances made by only one type of element. Compounds are made by several types of elements. Ojo: Si tienen una substancia que es por ej.: Oxygen (O 2 ) ES UN ELEMENTO NO UN COMPUESTO
A mixture is a combination of elements and compounds in the same place at the same time, not chemically combined. All mixtures are impure substances.
Colloids, are mixtures of (usually 2 different states), a characteristic is that almost all colloid has visible tiny spots of both substances. A solution is almost impossible to visually separate both substances, and suspensions, are both, if they are shaken is available to visually separate in layers, if not, they are mixed without possibility to separate.
Continuous phase Disperse phase GasLiquidSolid GasLiquid Aerosol Fog, Mist, Air spray Solid Aerosol Air, Smoke, Cloud SolidLiquid Foam Styrofoam (?) Gel Jelly Solid Sol Cranberry Glass LiquidFoam Shaving Cream Emulsion Milk Sol Blood La Fase Dispersa, es la fase mas pequeña, es la segunda fase La Fase Continua, es la fase grande la general.
Solute: the substance in a lesser amount (is usually a solid) Solvent: the substance in a greater amount (always a liquid) Concentrate: the density of how much solute is in the mixture