Finish the Equation of reactions, write them down in molecular and ionic form 1) Ca (NO3) 2 + K2CO3

Finish the Equation of reactions, write them down in molecular and ionic form 1) Ca (NO3) 2 + K2CO3– 2) FeCl2 + AgNO3- 3) Ba (NO3) 2 + K2SO4- 4) MgSO4 + NaOH- 5) Fe (OH) 2 + HNO3-6) Al2O3 + HCl– 7) BaSO4 + HCl- 8) Fe (OH) 3 + H2SO4- 9) CuO + H2O- 10) ZnCl2 + NaOH- 11) KOH + Al (OH) 3- 12) CaCO3 + HCl- 13) Ba (OH) 2 + H2SO4-

1) Calcium nitrate and calcium carbonate form calcium carbonate and potassium nitrate.

Ca (NO₃) ₂ + K₂CO₃ = CaCO₃ + 2 KNO₃

Ca⁺² + 2 NO₃ ⁻¹ + 2 K ⁺¹ + CO₃⁻² = CaCO₃ + 2 K ⁺¹ + NO₃ ⁻¹

Ca⁺² + CO₃⁻² = CaCO₃

2) Ferric chloride and silver nitrate react and form ferric nitrate and silver chloride.

FeCl₂ + 2 AgNO₃ = Fe (NO₃) ₂ + 2 AgCl

Fe⁺² + 2 Cl⁻¹ + 2 Ag⁺¹ + 2 NO₃⁻¹ = Fe⁺² + 2 NO₃⁻¹ + 2 AgCl

Cl⁻¹ + Ag⁺¹ = AgCl

3) Barium nitrate and potassium sulfate. Form potassium nitrate and barium sulfate.

Ba (NO₃) ₂ + K₂SO₄ = 2 KNO₃ + BaSO₄

Ba⁺² + 2 NO₃⁻¹ + 2 K⁺¹ + SO₄⁻² = 2 K⁺¹ + 2 NO₃⁻¹ + BaSO₄

Ba⁺² + SO₄ = BaSO₄

4) Magnesium sulfate and sodium hydroxide react to form sodium sulfate and magnesium hydroxide

MgSO₄ + 2 NaOH = Na₂SO₄ + Mg (OH) ₂

Mg⁺² + SO₄⁻² + 2 Na⁺¹ + 2 OH⁻¹ = 2 Na⁺¹ + SO₄⁻² + Mg (OH) ₂

Mg⁺² + 2 OH⁻¹ = Mg (OH) ₂

5) Iron hydroxide interacts with nitric acid. Iron nitrate and water are formed.

Fe (OH) ₂ + 2 HNO₃ = Fe (NO₃) ₂ + 2 H₂O

Fe⁺² + 2 OH⁻¹ + 2 H⁺¹ + NO₃⁻¹ = Fe⁺² + 2 NO₃⁻¹ + 2 H₂O

OH⁻¹ + H⁺¹ = H₂O

6) Aluminum oxide and hydrochloric acid form aluminum chloride and water after a chemical reaction.

Al₂O₃ + 6 HCl = 2 AlCl₃ + 3 H₂O

Al₂O₃ + 6 H⁺¹ + 6 Cl⁻¹ = 2 Al ⁺³ + 6 Cl⁻¹ + 3 H₂O

Al₂O₃ + 6 H⁺¹ = 2 Al⁺³ + 3 H₂O

7) The reaction takes place between substances such as barium sulfate and hydrochloric acid. Formed salt barium chloride and sulfuric acid.

BaSO₄ + 2 HCl = BaCl₂ + H₂SO₄

BaSO₄ + 2 H⁺¹ + 2 Cl⁻¹ = Ba⁺² + 2 Cl⁻¹ + 2 H⁺¹ + SO₄⁻²

BaSO₄ = Ba⁺² + SO₄⁻²

8) Iron hydroxide and sulfuric acid react chemically to form ferrous sulfate and water.

2 Fe (OH) ₃ + 3 H₂SO₄ = Fe₂ (SO₄) ₃ + 6 H₂O

2 Fe (OH) ₃ + 6 H⁺¹ + 3 SO₄ = 2 Fe⁺³ + 3 SO₄⁻² + 6 H₂O

2 Fe (OH) ₃ + 6 H⁺¹ = 2 Fe⁺³ + 6 H₂O

9) Reaction of copper oxide and water. Copper hydroxide is formed.

CuO + H₂O = Cu (OH) ₂

10) Zinc chloride reacts with sodium hydroxide. Sodium chloride and zinc hydroxide salt is formed.

ZnCl₂ + 2 NaOH = 2 NaCl + Zn (OH) ₂

Zn⁺² + 2 Cl⁻¹ + 2 Na⁺¹ + 2 OH⁻¹ = 2 Na⁺¹ + 2 Cl⁻¹ + Zn (OH) ₂

Zn⁺² + 2 OH⁻¹ = Zn (OH) ₂

11) KOH + Al (OH) ₃ = no reaction since the two bases do not interact with each other.

12) Calcium carbonate enters into a chemical interaction with hydrochloric acid. Formed salt calcium chloride and carbonic acid, which under normal conditions decomposes into water and carbon dioxide.

CaCO₃ + 2 HCl = CaCl₂ + CO₂ + H₂O

CaCO₃ + 2 H⁺¹ + 2 Cl⁻¹ = Ca⁺² + 2 Cl⁻¹ + CO₂ + H₂O

CaCO₃ + 2 H⁺¹ = Ca⁺² + CO₂ + H₂O.