What's happening
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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| What happens to the hydrogen molecules when we remove the battery? | the hydrogen molecules that are clinging as bubbles to the electrode, break up
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| What happens after hydrogen molecules break up? | they form into positively charged hydrogen ions and electrons
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| What happens to the oxygen molecules after we remove the water? | the oxygen molecules draw electrons from the metal, and then combine with the hydrogen ions to form water
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| How many electrons does the oxygen electrode losses? | lost 2 electrons to each oxygen molecule
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| How many electrons does the hydrogen electrode gain? | gained 2 electrons from each hydrogen molecule?
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| Is the electrons at the hydrogen electrode attracted to the positively charged oxygen electrode after the lossing and gaining electrons? | yes
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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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