0.83 m/s seems the correct answer, hope it helps
<span> By definition, </span>oxidation number<span> is the charge left on the given atom when all the bonding pairs (of electrons) are broken, so the oxidation number of Br will be +1</span>
Most atoms have more neutrons than protons which accounts for basically half of the nucleuses mass.
The molar mass for PCL3 is 137.33 g/mol
