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Science Air Quality
Question | Answer |
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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. |
How can we tell how many atoms of an element are in a molecule? | By the subscript. |
In our molecule kits, a molecule with all of its holes filled and rods connected represents what? | A stable molecule. |
What are the parts going into a chemical reaction called? | Reactants |
What are the parts created in a chemical reaction called? | Products |
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. |
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 |
What is the law of conservation of matter? | Matter can not be created nor destroyed. |