Term
| What force distinguishes compounds from mixtures? |
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Definition
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Term
| T-F A compound does not always have the same chemical formula. |
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Definition
| F...Compounds always have the same chemical formula. |
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Term
| What are the two terms used to specify the positions of atoms relative to one another in a compound? |
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Definition
| Bond Length and Bond Angles |
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Term
| Name three types of models that help you "see" a compound's structure and tell the differences between them. |
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Definition
Ball and Stick Model-shows bond angles and lengths Structural Formula-similar to ball and stick only uses chemical symbols
Space-filling Models-shows proportion or space filled by atoms but it's harder to see bond lengths and angles |
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Term
| What type of structure makes for a strong solid? |
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Definition
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Term
| Some compounds are made of _______, tightly packed, positively and negatively charged ions which make strong attractions between the oppositely charged ions. |
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Definition
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Term
| Some compounds such as sugar are made of _______. |
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Definition
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Term
| The strength of attractions between molecules varies. Which is the strongest bond, solids, liquids, or gasses? |
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Definition
| Solids, then liquids, and finally gases. |
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Term
| What does a chemical formula show? |
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Definition
| Which atoms or ions a compound is made of. |
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Term
| A _____ represents a compound's structure visually. |
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Definition
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Term
| Compounds with network structures are strong solids and have (high or low) melting and boiling points |
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Definition
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Term
| Substances made of molecules have (high or low) melting and boiling points in comparison to those with network structures. |
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Definition
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Term
| Put these compounds in order from strongest bond to weakest bond and tell the type of bond or structure they have: water, salt, sugar, dihydrogen sulfide gas, quartz |
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Definition
| Quartz (network structure), salt (bonded ions), sugar (molecules), water (molecules), dihydrogen sulfide gas (molecules) |
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Term
| A picometer (pm) is equal to _______. |
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Definition
| 1 x 10 (to the -12 power) m |
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