Science Air Quality
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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| A molecular formula is a form of showing... | Which elements are in a molecule and how many atoms are in a molecule.
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| How can we tell how many atoms of an element are in a molecule? | By the subscript.
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| In our molecule kits, a molecule with all of its holes filled and rods connected represents what? | A stable molecule.
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| What are the parts going into a chemical reaction called? | Reactants
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| What are the parts created in a chemical reaction called? | Products
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| Which statement is true about chemical reactions: The molecules in the reactants are the same as the molecules in the products. -Or- The atoms in the reactants are the same as the atoms in the products. | The atoms in the reactants are the same as the atoms in the products.
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| What would be the correct chemical equation that represents the statement: Two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water? | 2H+O2 ------> 2H2O
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| What is the law of conservation of matter? | Matter can not be created nor destroyed.
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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:
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