CHEMIST
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Why does Cl have a low boiling point? | Van Der Waals forces of attraction/ intermolecular forces are weak. Little energy is required to break this bonds.
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| Ionic compounds have high melting points. | `Oppositely charged ions are very strong. Huge amount of energy is required to break bonds.
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| Metals are good electrical conductors. | Mobile ions move freely between the positively charged metal ions.
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| Graphite is soft. | Carbon atoms are weak. The layers can slide over each other easily.
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| Diamond does not conduct electricity. | They consist of atoms and there are no free electrons remaining to conduct electricity.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
NAHC
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