Write the reaction equations: a) calcium- calcium oxide- calcium hydroxide- calcium nitrate- calcium carbonate

univerkov | February 11, 2021 | education

Write the reaction equations: a) calcium- calcium oxide- calcium hydroxide- calcium nitrate- calcium carbonate- calcium oxide b) barium- barium hydroxide- barium carbonate- barium nitrate- barium sulfate

а) 1) Ba + H₂O → Ba(OH)₂↓;

2) Ba(OH)₂↓ + СО₂↑ → BaCO₃↓ + Н₂О;

3) BaCO₃↓ + 2HNO₃→ H₂O + СО₂+ Ba(NO₃)₂;

4) Ba(NO₃)₂+ H₂SO₄ → BaSO₄↓ + 2HNO₃.

б) 1) 2Ca + O₂ → 2CaO;

2) CaO + HNO₃ → Ca(NO₃)₂↓ + H₂O;

3) Ca(NO₃)₂↓ + Na₂CO₃ → CaCO₃↓ + 2NaNO₃;

4) CaCO₃↓ → CaO + CO₂↑.

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