Answer these three questions Mole to Mole: KClO3(s) KCl(s) + O2(g)
How many moles of KClO3 are needed to produce 50 moles of O2?

Mole to Mass: Calculate the mass of hydrochloric acid needed to react with 5.00 moles of zinc in a single replacement reaction.

Mass to Mass: Calculate the mass of sodium phosphate (Na3PO4) produced if 30.0g of sodium acetate (NaC2H3O2) and silver phosphate (Ag3PO4) react.

33.3 is needed

Explanation:

hloride, what is the mass of calcium in

explanation:

  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-