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During the production of iron,the formation of CaSiO3 (slag)from the reaction of CaO (lime)and SiO2 (sand),shown below,facilitates the separation of the iron from the gangue.
CaO(s)+ SiO2(s)→ CaSiO3(l)
In this reaction the acidic oxide is ________ and the basic oxide is ________.
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