In the following reaction, .290 moles of barium chloride is combined with 4.80 moles of ammonium carbonate. What is the limiting reactant?
BaCl2 + (NH4)2CO3  BaCO3(s) + NH4Cl

The question is incomplete. complete question is attached belowanswer: correct answer is option b  i.e.  solid particles  reason: filter paper has small pores, through which smaller particles can pass through. however, solid particles  have relatively larger size. hence, they are least likely to pass through.

Each calcium ion has a charge of +2, which can also be written as ca2+. if those ions move out of the neuron and no other ions are moving, the neuron would lose the positive charge associated with those ions and become more negatively charged.

Neptunium is the only of those 4 that doesn’t occur naturally.

Asodium chloride is literally table salt