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| What is the value of a mole (mol)? |
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Definition
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| Who was the mole named after? |
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Definition
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| What is the atomic mass unit? |
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Definition
| 1/12 of the mass of carbon-12 |
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Definition
| The mass of 1 mol of atoms of an element |
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| Covert from moles to grams by: |
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Definition
| Multiply # moles by # molar mass |
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Term
| Convert from grams to moles by: |
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Definition
| Divide # grams by # molar mass |
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| Convert grams to # of atoms by: |
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Definition
| Divide # grams by molar mass then multiply by 6.022 x 10^23 |
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| Convert from molecules to grams by: |
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Definition
| Divide # molecules by 1 mol, then multiply by molar mass |
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| Convert grams of compound to grams of element by: |
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Definition
| Divide by total mass and multiply by mass of target element |
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Definition
| Element's percentage of the total mass of compound |
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| Calculate mass percent by: |
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Definition
| Divide target element by total compound in grams |
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Term
| Convert grams of element to grams of compound by: |
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Definition
| Multiply initial element (g) by 100/(percentage) |
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| Calculate empirical formula by: |
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Definition
| Divide experimental mass of each element by molar mass of that element |
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Term
| Calculate empirical formula from reaction data by: |
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Definition
| Subtracting given element mass from total compound mass |
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Definition
| Molar mass(usually bigger number) / empirical formula molar mass |
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Term
| Compounds containing what are soluble? |
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Definition
| Li, Na, K, NH4, NO3, C2H3O2 |
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Term
| Compounds that may be soluble (Cl, Br, I) |
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Definition
| Cannot contain Ag, Hg2, Pb |
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Term
| Compounds that may be soluble (SO4) |
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Definition
| Cannot contain Sr, Ba, Pb, Ca |
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Term
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Definition
| Contains OH; but not Li, Na, K, NH4; but does have Ca, Sr, Ba |
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Term
| What is a molecular equation? |
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Definition
| Shows complete, neutral formulas for every compound in a reaction |
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Term
| What is a complete ionic equation? |
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Definition
| Shows all of the species as they are actually present in the solution |
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Term
| What is a net ionic equation? |
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Definition
| Shows only the species that actually participate in the reaction |
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Term
| What are the characteristics of oxidation-reduction reactions? |
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Definition
| Involve transfer of electrons |
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Term
| What does OIL RIG stand for? |
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Definition
| Oxidation is loss, reduction is gain |
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Term
| What is the law of constant composition? |
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Definition
| All samples of a given compound have the same proportions of their corresponding elements. |
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| What is an empirical formula? |
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Definition
| It gives the relative number of atoms of each element in a compound. |
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Term
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Definition
| Single atoms of an element |
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Definition
| (Usually) doubled atoms of an element |
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Definition
| Compounds formed from two or more nonmetals. (H2O) |
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Definition
| Compounds that contain one or more cations paired with one or more anions. (NaCl) |
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Definition
| It makes up the electric charge of an atom. |
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Term
| You can assume a compound is ionic when: |
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Definition
| You have a metal and one or more nonmetals together in a chemical formula |
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Term
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Definition
| It does have a charge that varies from one compound to another |
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Definition
| It has a charge that differs in different compounds |
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Definition
| Those that contain only two different elements and end with -ide |
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