С→СO₂→CaCO₃→CaCl₂→Ca(NO₃)₂→Ca₃(PO₄)₂
С+O₂=СO₂
СO₂+CaO=CaCO₃
CaCO₃+2HCI=CaCl₂+CO₂↑+H₂O
CaCl2+2AgNO₃=Ca(NO₃)₂+2AgCI↓
3Ca(NO₃)₂+2H₃PO₄=Ca₃(PO₄)₂↓+6HNO₃
S→SO₃→H₂SO₄→SO₂→CaSO₃→CaSO₄
2S+3O₂=2SO₃
SO₃+H₂O=H₂SO₄
H₂SO₄+Na₂SO₃= Na₂SO₄+SO₂↑+H₂O
SO₂+CaO=CaSO₃
CaSO₃+H₂SO₄=CaSO₄↓+H₂SO₃
Na→NaOH→Na₂CO₃→CO₂→CaCO₃→CO₂
2Na+2H₂O=2NaOH+H₂↑
2NaOH+CO₂=Na₂CO₃+H₂O
Na₂CO₃+2HCI=2NaCI+CO₂↑+H₂O
CO₂+CaO=CaCO₃
CaCO₃=CaO+CO₂
Mg→MgO→MgCO₃→MgO→Mg(OH)₂→MgCI₂
2Mg+O₂=2MgO
MgO+CO₂=MgCO₃
MgCO₃=MgO+CO₂↑
MgO+H₂O=Mg(OH)₂↓
Mg(OH)₂+2HCI=MgCI₂+2H₂O
AI→AI₂O₃→AICI₃→AI(OH)₃→AI₂(SO₄)₃→AI(OH)₃
4AI+3O₂=2AI₂O₃
AI₂O₃+6HCI=2AICI₃+3H₂O
AICI₃+NaOH=AI(OH)₃↓+3NaCI
2AI(OH)₃+3H₂SO₄=AI₂(SO₄)₃+6H₂O
AI₂(SO₄)₃+6KOH=2AI(OH)₃↓+3K₂SO₄
