How many moles of calcium oxide will be produced when 3.0 moles of iron(III)oxide (Fe2O3) reacts with calcium phosphate Ca3(PO4)2 according to the following reaction:
Fe2O3 + Ca3(PO4)2 → 2 Fe(PO4) + 3 Cao

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity