pure subsancs and mixtures
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| matter | •Has mass (g, kg).
•Takes up space or volume (mL,L or cm3, m3).
•EVERYTHING AROUND US.
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| mixture | •Made up of 2 or more substances.
•Can be made up in different ways (ie. different concentrations, or combinations), therefore, a mixture does not have fixed chemical composition, or a chemical formula.
•Properties of a mixture are the blended .
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| Heterogeneous | Heterogeneous is an adjective that describes substances or materials.
•means not the same throughout.
•Usually more than 1 visible phase is obvious with the naked eye
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| Solutions | Homogeneous mixtures.
•Made up of a solute and solvent.
•Solute dissolves into the solvent.
•One visible phase.
•Solutions can be made up of solids, liquids and gases.
meateals as well
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| Homogeneous | Homogeneous is an adjective that describes substances or materials.
•means the same throughout – same composition and concentration – uniform appearance.
•One visible phase is seen with the naked eye (without a magnifier). No visible “bits” or layers.
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| Pure Substances | Are compounds or elements.
•Are truly homogenous - with the same composition and concentration throughout.
•Have one visible phase.
•Can be described with a chemical formula and has a fixed ratio of elements.
Made up of all the same particles
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| Compounds | 2 or more elements bonded together to make molecule.
•Compounds of the same substance have the same chemical formula the same chemical composition.water is H2O – 2 hydrogen atoms bonded to 1 oxygen atom.
•Ex: salt – , water – H2O, carbon dioxide – CO2.
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| Elements | Made up of atoms.
•One visible phase – the same composition and concentration throughout.
•Elements can be found on the periodic table.
•Atoms are the building blocks of matter.
•Examples: iodine crystal – I, iron – Fe, H – hydrogen, C – carbon.
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| Solid | A state of matter
• Definite shape
•Definite volume
•Particles are very close together
•Particles stay in the same position but rotate a little
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| Liquid | difinent volume. changing shape, medeaim space bettweenparticals, medeam attraction of paricals.
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| gas | in defentent volume and shape, large shpace bettween particals, but movment bettween particals is very fast.
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| plasma, | the forth state -o-f matter a has that is alectrisity charged, mainly stars and nuculas in outer space.
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| partical theroy | all matter is made up of tiny particals, that have spaces bettween them, allwaysmoveing. when heated particels move faster and pread apart.
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| Mechanical Mixture | diffrent parts that you can see mixted together, also known as a homogeneois mixter
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| Change of State | when a substance changes its state of matter.
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| Solute | the smaller part that is being disolved.
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| solvent | the larger part that is dissolveing the solute
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| Types of Solutions | when i solute and a solvent is mixed.
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| Solubility | how well something idsolves
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| Factors that Affect Solubility | factors are: temperature, crushong the solute, and stiring the solution.
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Created by:
sbelford
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