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Mixtures & Solutions

QuestionAnswer
What is matter? Anything that takes up space and has mass.
What are the three states of matter? Solid, Liquid, and Gas
What do the properties of matter mean? Describe the characteristics of matter
What are some properties you can use to describe matter? Colour, odour, taste, feel, density, boiling point, freezing point
What are some properties of water? Colourless, tasteless, can be a solid, liquid or gas, boils at 100 degrees and freezes at 0 degrees.
Homogenous Matter One set of properties (looks the same throughout)
Heterogenous Matter More than one set of properties (you can see different parts in it)
Pure Substance All the particles look the same. It cannot be separated into different substances.
What are examples of pure substances? Gold, Carbon Dioxide, Copper, Silver
Mechanical Mixture Same as heterogenous matter. You can see the different parts that were added together.
What are examples of mechanical mixtures? Pepsi, Chocolate Chip Cookie, Pepperoni Pizza, Salad
Solution A homogenous mixture. It’s mixed together so well you can only see one set of properties.
What are examples of solutions? Kool-Aid, Tree Sap, Ocean Water, Tooth Fillings, Air
What are the two parts of any solution? Solute and Solvent
Solute Gets dissolved to form a solution – the part with the least amount
Solvent Does the dissolving to form a solution – the part in the larger amount.
Dissolving Making a solution by mixing two or more substances.
What must the particles in a solute/solvent do in order to make a solution? They must be attracted to each other.
What four things can affect the rate of dissolving? Stirring, Crushing, Temperature, Pressure
Which was the fastest dissolving chocolate? Crushing (Chewing)
Soluble Means it will dissolve
Example of soluble materials? Baking Soda, Salt, Borax, Vinegar
Insoluble Means it won’t dissolve
Example of insoluble materials? Pepper and Flour
Concentration How much solute is dissolved in a certain amount of solvent
Concentrated Solution with a large amount of solute
Dilute Solution with a low amount of solute
Unsaturated More solute can dissolve into the solvent at the temperature
Saturated No more solute can dissolve at the temperature
Hydrometer Measures the concentration of solutions
How does a hydrometer work? It floats higher in concentrated solutions and lower in dilute solutions
 

 



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