Practice with Counting Atoms and Molecules
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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| Where do you find the coefficient- at beginning of molecule or below the element on right? | Beginning of molecule
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| Where do you find the subscript-beginning of the molecule or below the element on right? | Below the element on right
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| How many atoms of Hydrogen are in water? | 2
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| How many atoms of Oxygen in water? | 1
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| How do you determine the number of atoms of element if it is has a subscript and coefficient- multiply or add coefficient with subscript? | multiply coefficient with the subscript
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| How many elements are in 3HClO? | 3
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| How many atoms of Oxygen are in 3HClO? | 3
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| How many total atoms are in 3HClO? | 9
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| How many molecules are in 3HClO | 3
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| What are reactants | substances before the reaction begins
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| What are products? | substances formed as result of a reaction
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| What does the arrow mean in a chemical equation? | "produces"
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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:
mharlan
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