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12 Cards in this Set
- Front
- Back
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Elements |
Consist of only one type of atom. Cannot be made any simpler. Can exist as either atoms or molecules. |
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Compounds |
Consists of atoms of two or more different elements bound together. Can be broken down into simpler matter by chemical means. |
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Mixtures |
Consist of two or more different elements and/or compounds physically intermingled. Can be seperate into its components by physical means. |
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Physical change |
Is a change in substance’s physical properties, such as size, shape or state of matter.
Changes of state are common Liquid to gas, gas to solid etc. E.g sliced apple, crushed can they’re still the same only look different. |
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Chemical change |
One or more new substances are formed. Typical signs are: Change in colour Change in temperature Production of light or sound Formation of a new substance. Formation of gas |
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The periodic table |
It is used to list all the known elements from smallest to largest. It uses internationally recognised symbols, and is ordered in the physical and chemical properties of the elements. |
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Metals |
Commonly used for jewellery, construction and electronics. Their properties are ductile, malleable, conductible and lustre. |
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Non metals |
Are non conductible, dull and brittle. |
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Common compounds |
H2O is water CO is carbon monoxide HCl is hydrogen chloride. |
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Reactant |
The old substances in a chemical reaction |
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Product |
The new substance that forms after the chemical reaction |
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Chemical reaction |
The process of rearranging atoms to form new substances, is known as a chemical reaction. |
