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14-12-2022
Chemistry

contestada

When calcium (Ca) burns in the presence of oxygen (0₂),
calcium oxide (CaO) forms according to the chemical
equation:
2Ca + O2 → 2CaO
How many moles of Ca would be needed to react with 2
moles of O₂?
Select one:
-1
-2
-1/2
-4

Respuesta :

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