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15 Cards in this Set
- Front
- Back
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What is the oxidation number? |
The positive or negative charge acquired by an atom in a chemical bond. |
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What are 3 elements that have an oxidation number of 3+? |
Boron, Aluminum, and Gallium |
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What is the oxidation number for the elements in Group 2? |
2+ |
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When elements form a molecule, what is TRUE about the oxidation numbers of the atoms in the molecule? |
The sum of the oxidation numbers must equal zero. |
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True or False? |
All oxidation numbers from the same molecule must be negative? |
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Why do sodium and chlorine combine in a 1:1 ratio? |
When sodium loses an electron, it becomes an ion with a charge of +1. |
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Will beryllium get rid of two electrons, or gain six in order to obtain a stable number? |
It is easier to lose two electrons. |
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When is energy released? |
When chemical bonds form. |
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Why do 2 hydrogen atoms bond with one oxygen atom to make water? |
Because of the electrons in the outermost energy levels. |
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What number is the stable number for bonding? |
8 |
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What is chlorine's oxidation number? |
1- |
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How many types of atoms does CaCO3 contain? |
3 |
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What determines the properties of a compound? |
Chemical formula and the structure of the molecules. |
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What is held together by ionic bonds? |
Binary Ionic Compounds |
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What type of compound consists of two elements? |
Binary Compound |
