Terms starting with R
53 terms · page 3 of 3
Roasting
Stoichiometry & Chemical Reactions
°C
The heating of a sulfide ore strongly in a plentiful supply of air to convert it into the oxide.
2MS + 3O₂ → 2MO + 2SO₂
Root Mean Square Speed
States of Matter & Gas Laws
m/s
The square root of the average of the squared molecular speeds in a gas sample.
c_rms = √(3RT / M)
Rusting
Electrochemistry & Redox
Dimensionless
The corrosion of iron in the presence of both oxygen and water to form hydrated iron(III) oxide.
4Fe + 3O₂ + 2xH₂O → 2Fe₂O₃·xH₂O
Rutherford Model
Atomic Structure & Periodicity
Dimensionless
The nuclear model of the atom, in which a tiny dense positive nucleus is surrounded by orbiting electrons in mostly empty space.
Rydberg Formula
Atomic Structure & Periodicity
m⁻¹
The empirical equation predicting the wavelengths of the spectral lines emitted by a hydrogen-like atom.
1/λ = R_H(1/n₁² − 1/n₂²)