Chemistry 1.1 0.0 / 5 ? ChemistryUnit 1 ectASOCR Created by: ChloesnCreated on: 06-03-14 17:23 487623519 Across 1. One mole of any substance contains 6.02 x 1023 (Na), formula units. Number of particles in 1 mole of substance. (9, 8) 6. Is the sum of the relative atomic masses (Ar) for each atom in the formula . For a simple molecular compound, (3) 8. Is the sum of the relative atomic masses (Ar) for each atom in the formula . For a simple molecular compound, it is sometimes called (RAM). (3) 9. The mole is the unit that measures amount of substance in such a way that equal amounts of elements consist of equal numbers of atoms. (4) Down 2. The mass of one mole is equal to the relative atomic mass in g. (5, 4) 3. Tells you the actual number of atoms of each element in a molecule. (9, 7) 4. Tells you the simplest ratio of atoms of each element in a compound. (9, 7) 5. Tells you the number of times an atom of an element is heavier than one-twelfth of an atom of 12C. Ar values have no units. (3) 7. Mass in grams ÷ molar mass = (5, 2, 7, 5)
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