Garcia (EDC) - Slide Presentation
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This document discusses different types of mixtures, their properties, and characteristics. It defines a mixture as occurring when two or more substances are mixed without undergoing a chemical change. Mixtures can be heterogeneous, containing visually distinct components, or homogeneous, appearing uniform throughout. Common examples of mixtures mentioned include solid mixtures like rocks and concrete, liquid mixtures like alcoholic drinks and juice, and gas mixtures in the air. The document also discusses solutions as a type of homogeneous mixture, defining the solute and solvent. It explains the differences between dilute and concentrated solutions and defines a saturated solution.
Garcia (EDC) - Slide Presentation
- 1. Mixtures and their Characteristics By teacher Louis
- 2. Objectives: ● Recognize the difference between heterogeneous mixtures and homogeneous mixtures ● Demonstrate the characteristics of mixtures ● Integrate the properties of mixture
- 3. What is Mixture? In chemistry, when two or more substances mix with each other without participating in a chemical change, the resulting substance is called a Mixture.
- 4. The result formed due to the combination of substances does not lose its individuality nor are they combined chemically. Mixtures are the one product of a mechanical blending or mixing of chemical substances such as elements and compounds.
- 5. General Properties of Mixtures Mixtures are made up of two or more substances that are not chemically combined with each other. The properties of mixtures are listed below. ● The components of a mixture each keep their original properties. ● The separation of components can be easily done. ● The proportion of the components is variable.
- 6. Mixtures of solids They can have pure elements or a variety of compounds inside. When you have a solid with more than one type of compound, it is called a mixture. Most rocks are mixtures of many different compounds. Concrete is a good example of a man-made solid mixture.
- 7. Mixtures of Liquids This is a type of liquid-liquid mixture whereby the two substances mix completely to from a single substance. Examples are: Alcoholic drinks (alcohol mixed with flavorings). Juice (water mixed with flavorings).
- 8. Mixtures of Gases One of the properties of gases is that they mix with each other. When they do so, they become a solution—a homogeneous mixture. Some of the properties of gas mixtures are easy to determine if we know the composition of the gases in the mix. In gas mixtures, each component in the gas phase can be treated separately.
- 9. Types of Mixtures There are two types of mixtures: heterogeneous and homogeneous. Heterogeneous mixtures have visually distinguishable components, while homogeneous mixtures appear uniform throughout. The most common type of homogenous mixture is a solution, which can be a solid, liquid, or gas.
- 10. Types of Mixtures ● heterogeneous mixtures A heterogeneous mixture is simply any mixture that is not uniform in composition - it's a non-uniform mixture of smaller constituent parts. By contrast, a mixture that is uniform in composition is a homogeneous mixture. ● homogeneous mixtures A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. ... All solutions would be considered homogeneous because the dissolved material is present in the same amount throughout the solution. One characteristic of mixtures is that they can be separated into their components.
- 11. Solutions ● Solute ● Solvent A solution forms when one substance is dissolved by another. The substance that dissolves is called the solute. The substance that dissolves it is called the solvent. The solute is present in a lesser amount that the solvent.
- 12. Dilute vs. Concentrated The concentration of a solution is a measure of the amount of solute that has been dissolved in a given amount of solvent or solution. A concentrated solution is one that has a relatively large amount of dissolved solute. A dilute solution is one that has a relatively small amount of dissolved solute
- 13. Saturated Solutions A saturated solution is a solution that contains the maximum amount of solute that is capable of being dissolved. At 20°C, the maximum amount of NaCl that will dissolve in 100. g of water is 36.0 g. If any more NaCl is added past that point, it will not dissolve because the solution is saturated.