Write down the reaction equations: Silicon oxide (lV) – Silicon – magnesium silicate – Silane

Write down the reaction equations: Silicon oxide (lV) – Silicon – magnesium silicate – Silane – Silicon oxide (lV) – potassium silicate – silicic acid – silicon oxide (lV) – silicon fluoride (lV).

We compose the reaction equations:
SiO2 + 2C = Si + 2CO – redox reaction (ORR);
Si + 2Mg = Mg2Si – compound reaction;
Mg2Si + 2H2SO4 = SiH4 + 2MgSO4 – ion exchange, silane is formed;
SiH4 + 2O2 = SiO2 + 2H2O – OBP;
SiO2 + 2KOH = K2SiO3 + H2O – ion exchange, obtained potassium silicate;
K2SiO3 + 2HNO3 = 2KNO3 + H2SiO3 – ion exchange, silicic acid obtained;
H2SiO3 = SiO2 + H2O – decomposition;
SiO2 + 4HF = SiF2 + 2H2O – ion exchange, silicon fluoride was obtained.