the mass is divided into how many parts
Mass (liturgy) The liturgy is divided into two main parts: The Liturgy of the Word (Gathering, Proclaiming and Hearing the Word, Prayers of the People) and the Liturgy of the Eucharist (together with the Dismissal), but the entire liturgy itself is also properly referred to as the Holy Eucharist. The sequence of the liturgy is almost identical to the Roman Rite, except the Confession of Sin ends the Liturgy of the Word in the Anglican rites in North America, while in the Roman Rite and in Anglican rites in many jurisdictions the Confession is near the beginning of the service.
Unified atomic mass unit The unified atomic mass unit or dalton (symbol: u, or Da) is a standard unit of mass that quantifies mass on an atomic or molecular scale (atomic mass). One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol.[1] It is defined as one twelfth of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest,[2] and has a value of 6973166053904000000♠1.660539040(20)×10−27 kg, or approximately 1.66 yoctograms.[3] The CIPM has categorised it as a non-SI unit accepted for use with the SI, and whose value in SI units must be obtained experimentally.[2]