2 moles of sodium phosphate reacts with 3 moles of calcium chloride
2Na3PO4 + 3 CaCl2 -> 6 NaCl + Ca2 (PO4)2
using the chemical equation above, how many moles
of NaCl can be produced if one of these is a limiting
reactant?

6 moles of NaCl are produced when 2 moles of sodium phosphate reacts with 3 moles of  calcium chloride

Explanation:

The balanced chemical equation is:

According to stoichiometry :

2 moles of require 3 moles of

Thus both are limiting reagent as both will limit the formation of product.

As 2 moles of reacts with 3 moles of give = 6 moles of

Thus 6 moles of NaCl are produced when 2 moles of sodium phosphate reacts with 3 moles of  calcium chloride

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

a polar bond is formed when electrons are shared unevenly between atoms