A. Using a whole solid in the reactants
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The answer is: both choices a and b.
The base SI unit for molar mass is kg/mol, but chemist more use g/mol (gram per mole).
For example, the molar mass of fluorine is 38.00 g/mol.
M(F₂) = 2 · Ar(F) · g/mol.
M(F₂) = 2 · 19.00 · g/mol.
M(F₂) = 38.00 g/mol.
Molar mass M represent the mass of a substance (in this example molecule of florine) divided by the amount of substance.
Ar is the atomic weight of a chemical element (in this example fluorine).
Answer:Some athletes eat (fats, carbohydrates, vitamins, or water) before a competition because this nutrient supplies quick energy. The gall bladder's job is to store bile, a(n) (protein, vitamin, enzyme, or fat) made by the liver.
Explanation:
