Detailed Breakdown: Measurement & Uncertainty
Metric System and SI Units: Mastery of base units (meters, kilograms, seconds, Kelvin, moles) and the ability to convert between prefixes like nano ($10^{-9}$), micro ($10^{-6}$), and kilo ($10^{3}$).
Scientific Notation: Handling the extreme scales of chemistry, from Avogadro's number ($6.02 \times 10^{23}$) to the size of a hydrogen atom ($5.3 \times 10^{-11} \text{ m}$), without losing decimal precision.