Write down the reaction equations: 1) phosphoric acid + calcium hydroxide → calcium phosphate

| September 6, 2021 | education

Write down the reaction equations: 1) phosphoric acid + calcium hydroxide → calcium phosphate + water 2) iron (III) hydroxide → iron (III) oxide + water 3) chromium (III) oxide + magnesium → magnesium oxide + chromium 4) barium chloride + silver nitrate → barium nitrate + silver chloride 5) aluminum + oxygen → aluminum oxide

Let us write down the reaction equations taking into account the coefficients.

1) Phosphoric acid + calcium hydroxide = calcium phosphate + water.

2H3PO4 + 3Ca (OH) 2 = Ca3 (PO4) 2 + 6H2O.

2) Iron hydroxide = iron oxide + water. Decomposition under temperature.

2Fe (OH) 3 = Fe2O3 + 3H2O.

3) Chromium oxide + magnesium = magnesium oxide + chromium.

Cr2O3 + 3Mg = 3MgO + 2Cr.

4) Barium Chloride + Silver Nitrate = Barium Nitrate + Silver Chloride. A white curdled precipitate of silver chloride falls out.

BaCl2 + 2AgNO3 = Ba (NO3) 2 + 2AgCl.

5) Aluminum + oxygen = aluminum oxide.

4Al + 3O2 = 2Al2O3.



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