- Mole: A unit of measurement used in chemistry to express amounts of a chemical substance. One mole is equal to roughly 6.022 x 10^23 particles, such as atoms or molecules.
- Pressure: The force applied to a unit area of surface. In chemistry, pressure is often measured in units of atmospheres (atm) or pascals (Pa).
- Precision: The quality of being exact or accurate in measurement or performance. In science, precision refers to the reproducibility of a measurement.
- Accurate: Correct in all details; exact. In science, accuracy refers to how close a measurement is to the true or accepted value.
- An atom: The smallest unit of matter that retains the properties of an element. Atoms consist of a nucleus containing protons and neutrons, with electrons orbiting around the nucleus.
Define the following
Mole
Pressure
Precision
Accurate
An atom
1 answer