2470475
Descrição
FlashCards por beccajanewoolley, atualizado more than 1 year ago
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Criado por beccajanewoolley
mais de 9 anos atrás
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| Questão | Responda |
| What bonding and structure does NaCl have? | Ionic bonding and a giant ionic lattice structure. |
| Define ionic bond | The electrostatic attraction between oppositely charged ions |
| What is a giant ionic lattice? | A three-dimensional structure of oppositely charged ions, held together by strong ionic bonds |
| What are the physical properties of a giant ionic lattice? | High melting point Dissolve well in polar solvents Doesn't conduct electricity in solid state Conducts electricity in molten state in solution |
| Why doesn't a NaCl conduct electricity in solid when it does in molten and solution? | No free moving ions or electrons in solid. In molten and solution, ions are free to move. |
| What shape is the P orbital? | Dumb-bell shaped |
| How many electrons are in a P sub-shell? | 6 |
| How many orbitals are in a P subshell? | 3 |
| What groups are in the P-block in the periodic table? | Groups 3-8 |
| Why does water have a higher boiling point than other group 6 hydrides? | Water molecules form hydrogen bonds to one another, which take a lot of energy to break before it can evaporate, giving it a relatively high boiling point. |
| Why does ice float? | In the liquid state, hydrogen bonds are constantly forming and breaking as the molecules move around. In the solid state, the O-H bonds and hydrogen bonds are arranged tetrahedrally around he O atom, forming an open lattice structure. This lowers the density, making ice float. |
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