Consider the genetic relationship between classes of inorganic substances using the example
March 26, 2021 | education
| Consider the genetic relationship between classes of inorganic substances using the example of magnesium and carbon. Write the reaction equations.
Magnesium is a metal, a reducing agent in terms of chemical properties. Let’s make a chain of transformations:
Mg – MgO – MgCL2 – Mg (OH) 2 – Na2 {Mg (OH) 4}
\
MgS
Decision:
2Mg + O2 = 2MgO;
MgO + 2HCL = MgCL2 + H2;
MgCL2 + 2KOH = Mg (OH) 2 + 2KCL;
Mg (OH) 2 + 2NaOH = Na2 {Mg (OH) 4};
Mg + S = MgS
Carbon is a non-metal and can form acidic oxides in chemical reactions. Let us show its chemical properties by a chain of transformations:
C – CO2 – NaHCO3 – CO2 – H2CO3 – CaCO3;
C + O2 = CO2;
CO2 + NaOH = NaHCO3;
NaHCO3 + HCL = NaCL + H2O + CO2;
CO2 + H2O = H2CO3;
H2CO3 + CaO = CaCO3 + H2O
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