Respuesta :
balanced equations
2 Ca₂(PO₄)2 + 6 Si O₂ + 10 C → 6 Ca Si O₃ + P₄ + 10 CO
To balance this equation you need to take into account the redox reactions:
P+5 + 5e- → P(0) C(0) → C+2 + 2e- in order to balance the electrons you have to multiply by 2 the first semi-equation and by 5 the second semi-equation:
2 P+5 + 10e- → 2 P(0) 5 C(0) → 5C+2 + 10e-
Adjusting the equation you will obtain:
Ca₃(PO₄)₂ + 3 SiO₂ + 5 C → 3 CaSiO₃ + 1/2 P₄ + 5 CO
What is redox reaction and its types?
Redox reactions are matched sets: if one species is oxidized in a reaction, another must be reduced. Keep this in mind as we look at the five main types of redox reactions: combination, decomposition, displacement, combustion, and disproportion.
An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
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