When equation decays in part of the uranium decay series, there are two pathways, one of alpha emission and one of beta emission. When equation emits a beta particle, what is the product?

The product of emission of beta particle from uranium 238 will be Uranium 239

Explanation:

There are two type of beta decay

β− decay and β+ decay

Let us assume here the decay is β− decay for Uranium 238

Uranium 238 will decay β− to produce Uranium 239

Hence, the product of emission of beta particle from uranium 238 will be Uranium 239

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-