For the reaction, calculate how many moles of the product form when 0.046 mol of O2 completely reacts. Assume that there is more than enough of the other reactant.
2Ca(s)+O2(g)→2CaO(s)
Express your answer using two significant figures.

0.023 moles of CaO.

Explanation:

The balanced equation tells us that we'll get 2 moles of CaO for every one mole of O2.  Since we have 0.046 moles of O2, we'll get 0.023 moles of CaO.  (2 sig figs)

2b2t

explanation:

2b2t

the dissolution of polymer can be thermodynamically described in 2 steps.