Answer: The Excretory system
Explanation: Because I said LoL
Sliding or rolling friction
(4) C-14 Carbon is found in all living organisms.
Mg gained mass because it went from being a single element (on the reactant side) to being a molecule (on the product side).
Formula unit mass is defined as the sum of the mass of all the atoms each multiplied its atomic masses that are present in the empirical formula of a compound. It is expressed in amu.
Atomic mass of calcium = 40 amu
Atomic mass of chlorine = 35.5 amu
Formula mass of CaCl2 = (1 x 40) + (2 x 35.5) = 111amu.
