Some Chemical Formula & Equations

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S. No. Compounds Name   Chemical Formula 
1.  barium chloride BaCl2
2.  sodium chloride NaCl2
3. Barium oxide BaO
4. Ferrous oxide FeO
5. Ferric oxide Fe2O3
6. ..... .....
7. ..... .....
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Chemical Equations
1. calcium + water ⟶ calcium hydroxide + hydrogen
Ca + 2H2O     ⟶  Ca(OH)2  + H2O

2. Sodium hydroxide + Sulfuric acid ⟶ Sodium sulfate + Water
2NaOH  + H2SO4 ⟶ Na2SO4 + 2H2O

3. sodium carbonate + nitric acid ⟶ sodium nitrate + carbon dioxide + water 
Na2CO3 + 2HNO3 ⟶ 2NaNO3 + CO2 + H2O

4. 
calcium hydroxide + carbon dioxide ⟶ calcium bicarbonate
Ca(OH)2 + CO2 ⟶ Ca(HCO3)2

5.Magnesium + Hydrochloric acid ⟶ Magnesium chloride + Hydrogen
Mg + 2HCl ⟶ MgCl2 + H2