Chemistry 1.1 0.0 / 5 ? ChemistryUnit 1 ectASOCR Created by: ChloesnCreated on: 06-03-14 17:23 742951368 Across 1. Tells you the actual number of atoms of each element in a molecule. (9, 7) 6. 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) 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. Is the sum of the relative atomic masses (Ar) for each atom in the formula . For a simple molecular compound, (3) Down 2. Tells you the simplest ratio of atoms of each element in a compound. (9, 7) 3. The mass of one mole is equal to the relative atomic mass in g. (5, 4) 4. One mole of any substance contains 6.02 x 1023 (Na), formula units. Number of particles in 1 mole of substance. (9, 8) 5. 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) 7. Mass in grams ÷ molar mass = (5, 2, 7, 5)
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