Final answer:
A 200 mL sample of distilled water will boil at 100°C and have a density of 1 g/cm3, since boiling point and density are characteristic properties that do not change with volume.
Step-by-step explanation:
When Jelena studies a sample of 200 mL of distilled water, she will most likely find that it boils at 100°C and has a density of 1 g/cm3. This is because the boiling point of a substance is a characteristic physical property that does not change with the quantity of the substance. Similarly, the density of water is a property that stays consistent regardless of the sample's volume. So, for a 200 mL sample of distilled water, the correct answer would be that it will boil at 100°C and have a density of 1 g/cm3, which corresponds to answer choice C.