A <span> sample of water (H2O) has a mass of 1.0 g which is equal to 0.06 moles of H2O. TO calculate this, we use the relation of the molar mass which is for water is 18.02 grams / mol of H2O.
1.0 g </span><span>H2O</span> ( 1 mol H2O / 18.02 g H2O) = 0.06 mol H2O
The answer is d electrons orbit the nucleus of an atom in fixed electron shells
<span>lower than the boiling point of water
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