Answer: mole.
- A mole
- B gram
- C litre
- D atom
Correct answer: A. mole
Explanation: The mole (mol) is the SI base unit for amount of substance.
The 7 SI base units. All derived units (newton, joule, watt, volt, etc.) can be expressed as combinations of these 7 fundamental units raised to various powers.
Concept context
SI base units, dimensional analysis, significant figures, and error propagation. The toolkit every physics calculation relies on.