Term
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Definition
| Mass of an atom of an Isotope compare with 1/12th of the mass of an atom of carbon 12 |
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Term
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Definition
| weighted mean mass of an atom of an element compared with 1/12th of the mass of an atom of carbon-12 |
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Term
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Definition
| Quantity whose unit is the mole |
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Term
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Definition
| unit for amount of substance |
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Term
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Definition
| Number of atoms per mole of the carbon 12 isotope |
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Term
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Definition
| mass per mole of substance |
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Term
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Definition
| simplest whole number ratio of atoms of each element present in a compound |
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Term
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Definition
| actual number of atoms of each element in a mol |
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Term
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Definition
| Large number of solute per dm3 |
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Term
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Definition
| Small amount of solute per dm3 |
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Term
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Definition
Proton donor
when added to water it releases H+ ion |
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Term
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Definition
| proton acceptor e.g. metal hydroxides, ammonia |
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Term
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Definition
| soluble base that dissolves in water forming an OH- ion |
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Term
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Definition
| chemical compound formed from and acid when the H+ ion is replaced by a metal ion or ammonium ion |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| substance with no water molecules |
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Term
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Definition
| crystalline compound with water molecules |
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Term
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Definition
| refers to water forming an essential part of the crystalline structure of the compound |
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Term
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Definition
loss of electrons
INCREASE OXIDATION NUMBER |
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Term
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Definition
gain of electrons
DECREASE OXIDATION NUM |
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Term
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Definition
| Enery required to remove one electron in one mole of gaseous atoms to one mole of gaseous 1+ ions |
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Term
| Successive Ionisation enery |
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Definition
| energy required to remove one electron in turn |
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Term
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Definition
| Greather the nuclear charge the greater the attraction experienced by outer shell electron |
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Term
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Definition
| the greater the atomic radius the less nulcear attraction experienec of outer shell electrons |
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Term
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Definition
| Inner shells repel outer shells |
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Term
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Definition
| greater shieling= smaller nuclear attraction experienced by outer electrosn |
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