︵ yes CaO(s) + CO2(x) → CaCO3(s) reducing agent: agent: redox reaction? Therefore, limestone is preferable to lime. Is the reaction exposing CaO (calcium oxide) to CO 2 giving CaCO 3 (calcium carbonate) spontaneous? 1 mole of CaCO3 is able to yield 1 mole CO2. ︵ yes no C(s) + O2(g) → CO2(g) reducing agent: oxidizing agent: Get more help from Chegg. Explain. Lime is made from limestone by calcining, that is, heating and decomposing limestone. it … If you are having trouble with Chemistry, Organic, Physics, Calculus, or Statistics, we got your back! An advanced solid reducing agent, i.e., a CaO/SiO 2 composite has been optimized to improve the hydrogen fluoride (HF; a green house gas) elimination in semiconductor-based industrial applications. CaO + CO2 = CaCO3 (normal temp.). Mass of CaO obtained 56×3 g = 168 g CaO. Ca2+ O2- ions. Endothermic or exothermic? redox reaction?no IOP yes FeO(s) + CO(g) → Fe(s) + CO2(g) reducing agent: oxidizing agent: redox reaction? Expert Answer 100% (1 rating) Previous question Next question … Did you know? Molar mass of CaO is 40+16 g= 56g. Let us help you simplify your studying. CaCO3(s) --> CaO(s) + CO2(g) Whether CaO is strong or CaCO3 is weak is of little importance, and makes no difference in the long run. Can write the reaction as two half-reactions: 2Ca 2Ca2+ O2 2O2-Here, calcium is oxidised; i.e. Formation of calcium oxide (CaO) 2Ca(s) + O2(g) 2CaO(s) Ca and O2 (reactants): neutral atoms. 4CaO + 2Al = 3Ca + (CaAl2)O4 (1200° C). 3 moles of CaCO3 is able to yield 3 moles of CO2. Identifying Oxidising and Reducing Agents. Slide 11. CaO + SiO2 = CaSiO3 (wollastonite) (1100-1200° C). 4CaO + 2Cr2O3 + 3O2 = 4CaCrO4 (600-700° C). CaCO3 → CaO + CO2. To avoid the Ca(OH) 2 formation and enhance the HF removal efficiency of CaO, the hydrophobic properties of silica (SiO 2) have used as a catalyst materials to enhance the stability of CaO/SiO 2 solid reducing … Endothermic Or Exothermic? Our videos will help you understand concepts, solve your homework, and do great on your exams. This problem has been solved! CaO + TiO2 = (CaTi)O3 (perovskite) (900-1100° C). Our videos prepare you to succeed in your college classes. 3 moles of CaO is equivalent to 3x molar mass of CaO. Both approaches tie up H+ as … Question: Is The Reaction Exposing CaO (calcium Oxide) To CO2 Giving CaCO3 (calcium Carbonate) Spontaneous? Explain . Calcium oxide can neutralize more acid, but at a cost. 2CaO + 2Cl2 = 2CaCl2 + O2 (700° C), CaO + 3C(coke) = CaC2 + CO (1900-1950° C). See the answer. The action of both oxidising and reducing agents can be represented in the form of a half-equation. There is about 1/2 lb or 250 g of … CaO + 2HCN = CaCN2 + CO + H2 (700° C). That requires energy, equipment and money. Calcium oxide (product): ionic compound. Example.
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