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4 Cards in this Set
- Front
- Back
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Two categories of covalent bonds |
Simple molecular and giant molecular |
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Would Ammonia have a high or low melting point? |
Ammonia is a covalent compound having simple molecular structure containing Van der Waals forces. These forces are weak forces that are easily broken. Therefore they do not require a lot of energy to break. Thus melting point is low |
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Will covalent substances dissolve in water? |
LIKE DISSOLVE LIKE. Covalent substances will DISSOLVE in NON-POLAR solvents. Non-polar substances dissolve in other non-polar substances such as kerosene, gasoline and tetrachloromethane. They cannot dissolve in water because water is a POLAR solvent/substance. Like dissolves LIKE once again |
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Conductivity |
Covalent compunds do not conduct electricity. This is so because they do not have any free mobile electrons. All electrons have been used up in the bonding process. They are not free, able to move or carry electricity . H2nce covalent compounds will not conduct electricity. |
