Final answer:
The formula equation for producing calcium fluoride from fluorine gas and calcium metal is F2(g) + Ca(s) → CaF2(s). Complete and net ionic equations have been provided for the reaction of calcium chloride and sodium fluoride solutions. Additionally, the decomposition of calcium carbonate into calcium oxide and carbon dioxide is represented by CaCO3(s) → CaO(s) + CO2(g).
Step-by-step explanation:
The formula equation for the reaction between fluorine gas (F2(g)) and calcium metal (Ca(s)) to produce calcium fluoride powder (CaF2(s)) is given by:
F2(g) + Ca(s) → CaF2(s)
The reaction of aqueous solutions of calcium chloride and sodium fluoride to produce solid calcium fluoride and aqueous sodium chloride can be represented by the following complete ionic and net ionic equations:
Complete Ionic Equation:
Ca2+(aq) + 2Cl−(aq) + 2Na+(aq) + 2F−(aq) → CaF2(s) + 2Na+(aq) + 2Cl−(aq)
Net Ionic Equation:
Ca2+(aq) + 2F−(aq) → CaF2(s)
The decomposition of solid calcium carbonate to form solid calcium oxide and gaseous carbon dioxide is given by:
CaCO3(s) → CaO(s) + CO2(g)