Question

Mg(OH)2 + FeCl2 → NaOH + НBr → BaCl2+ H2SO4 → Cu + ZnSO4 → KOН + Cr(OH)3 → Mg + CuSO4 → NaCl + AgNO3 → KCl + CaCO3 →

Answer 1

Ответ:

Mg(OH)2 + FeCl2 →  реакції немає

NaOH + НBr →  H2O+NaBr

BaCl2+ H2SO4 →  2HCl+BaSO4

Cu + ZnSO4 →  реакції немає

3KOН + Cr(OH)3 →

K3CrO3+H2O

Mg + CuSO4 →  MgSO4+Cu

NaCl + AgNO3 →  AgCl+NaNO3

Answer 2

Ответ есть на фотографии

Answer 3

Let's go through each chemical equation step by step:

1. Mg(OH)2 + FeCl2 → (no reaction) Magnesium hydroxide (Mg(OH)2) and iron(II) chloride (FeCl2) do not react with each other.

2. NaOH + HBr → NaBr + H2O Sodium hydroxide (NaOH) reacts with hydrobromic acid (HBr) to form sodium bromide (NaBr) and water (H2O).

3. BaCl2 + H2SO4 → BaSO4 + 2HCl Barium chloride (BaCl2) reacts with sulfuric acid (H2SO4) to form barium sulfate (BaSO4) and hydrochloric acid (HCl).

4. Cu + ZnSO4 → CuSO4 + Zn Copper (Cu) reacts with zinc sulfate (ZnSO4) to form copper sulfate (CuSO4) and zinc (Zn).

5. KOH + Cr(OH)3 → KCrO4 + H2O Potassium hydroxide (KOH) reacts with chromium(III) hydroxide (Cr(OH)3) to form potassium chromate (KCrO4) and water (H2O).

6. Mg + CuSO4 → MgSO4 + Cu Magnesium (Mg) reacts with copper sulfate (CuSO4) to form magnesium sulfate (MgSO4) and copper (Cu).

7. NaCl + AgNO3 → AgCl + NaNO3 Sodium chloride (NaCl) reacts with silver nitrate (AgNO3) to form silver chloride (AgCl) and sodium nitrate (NaNO3).

8. KCl + CaCO3 → K2CO3 + CaCl2 Potassium chloride (KCl) reacts with calcium carbonate (CaCO3) to form potassium carbonate (K2CO3) and calcium chloride (CaCl2).

Please note that these reactions are balanced equations.