QUIZ & WW1

• Mixture is a combination of two or more substances that are not chemically combined. The substance are combined but no new substances formed.
• A mixture can be solid, liquid, or gas form.
• In mixtures of solid materials, the components appear to be non-uniform or heterogeneous mixture. The components of solid mixtures can be distinguished or identify from one another.
• TWO TYPES OF MIXTURE:

  Homogeneous Mixture

  Heterogeneous Mixture
• Homogeneous means THE SAME.

  Heterogeneous means DIFFERENT.
• Homogeneous mixture appears uniform all throughout because they have the same proportion.

  Heterogeneous Mixture are not in uniform in proportion where combined substances are not evenly spread or mixed.
• A mixture of different metals are also called "alloys".

  COMMON TYPES OF ALLOYS:

  Steel

  Bronze

  Brass
• A "uniform" or "homogeneous" mixture is a mixture which you cannot clearly see the components or ingredients and one type of a uniform mixture is the solution.
• A solution is formed when one substance is dissolved in another substance.

  When a substance is dissolved, it breaks down into molecules. And these molecules mix with other molecules of another substance.
• Solute is the additive or the substance being dissolve in a solvent.

  Extra information: It is a substance that dissolves in another substance, it is the component in a solution present in a lesser amount.
• Solvent is the main component of the solution and it is usually in greater amount.

  
  

  Extra Information: A substance that dissolves a solute, it is usually a liquid.
• When solute is dissolved in as vent it results in a so called solution.
• Solubility - the ability to be dissolved specially in water.
• DIFFERENT FACTORS AFFECTING SOLUBILITY:

  1. Nature of solute and solvent
  2. Temperature of solvent
  3. Manners of stirring
  4. Amount of solvent
  5. Size of the solute
• SOLVENT

  A substance that does the dissolving.

  Larger amount

  
  

  SOLUTE

  A substance that is being dissolved.

  Smallest amount
• Nature of solvent

  -Solubility of a solute in a solvent depends on the nature of both.
• Temperature of Solvent

  -Raising the temperature will increase the solubility of a solute in a solvent.
• Manners of Stirring

  -It affects how quickly a solute dissolves in a solvent.
• Dilute - solution has small amount of solute.
• Concentrated - solution that has a lot of solute in a given solvent.