Me for part 3: double-displacement reactions: for each of the double-displacement reactions, describe what happened in each well, including the colors of any products that formed. if a chemical reaction occurred, write a balanced equation for it. then using the a, b symbols, write a general equation for a double-displacement reaction. here are the chemical formulas of the reactants for each reaction: • sodium chloride – nacl copper sulfate – cuso4 • sodium hydroxide – naoh copper sulfate – cuso4 • sodium phosphate – na2hpo4 copper sulfate – cuso4 • sodium chloride – nacl silver nitrate – agno3 • sodium hydroxide – naoh silver nitrate – agno3 • sodium phosphate – na2hpo4 silver nitrate – agno3

General equation for a double-displacement reaction:  

AB + CD --> AC + BD

• sodium chloride – NaCl copper sulfate – CuSO₄  

NaCl + CuSO₄ --> Na₂SO₄ + CuCl₂

The products formed are sodium sulfate and copper (II) chloride.

Copper (II) chloride forms a blue colored solution.

• sodium hydroxide – NaOH copper sulfate – CuSO₄  

NaOH + CuSO₄ --> Na₂SO₄ + Cu(OH)₂

The products formed are sodium sulfate and copper (II) hydroxide.

Copper (II) hydroxide forms a blue colored solution.

• sodium phosphate – Na₂HPO₂ copper sulfate – CuSO₄  

Na₂HPO₄ + CuSO₄ --> Na₂SO₄ + CuHPO₄

The products formed are sodium sulfate and copper (II) hydrogen phosphate.

Copper (II) hydrogen phosphate forms a blue colored solution.

• sodium chloride – NaCl silver nitrate – AgNO₃  

NaCl + AgNO₃--> AgCl + NaNO₃

The products formed are silver chloride and sodium nitrate.

Silver chloride forms a white precipitate.

• sodium hydroxide – NaOH silver nitrate – AgNO₃  

NaOH + AgNO₃   --> NaNO₃ + AgOH

The products formed are silver hydroxide and sodium nitrate.

Silver hydroxide forms a white precipitate.

• sodium phosphate – Na₂HPO₄ silver nitrate – AgNO₃

Na₂HPO₄ + AgNO₃  --> NaNO₃ +  Ag₂HPO₄

The products formed are sodium nitrate and silver hydrogen phosphate.

Silver hydrogen phosphate forms a colorless solution.

The chemical equations are written below.

Explanation:

Double displacement reaction is defined as the reaction in which exchange of ions takes place.

The general chemical equation for double displacement reaction follows:

For the given options:

The chemical equation for the reaction of sodium chloride and copper sulfate follows:

By Stoichiometry of the reaction:

2 moles of sodium chloride reacts with 1 mole of copper sulfate produces 1 mole of sodium sulfate and 1 mole of copper chloride.

The chemical equation for the reaction of sodium hydroxide and copper sulfate follows:

By Stoichiometry of the reaction:

2 moles of sodium hydroxide reacts with 1 mole of copper sulfate produces 1 mole of sodium sulfate and 1 mole of copper hydroxide.

The chemical equation for the reaction of sodium hydrogen phosphate and copper sulfate follows:

By Stoichiometry of the reaction:

1 mole of sodium hydrogen phosphate reacts with 1 mole of copper sulfate produces 1 mole of sodium sulfate and 1 mole of copper hydrogen phosphate.

The chemical equation for the reaction of sodium chloride and silver nitrate follows:

By Stoichiometry of the reaction:

1 mole of sodium chloride reacts with 1 mole of silver nitrate produces 1 mole of sodium nitrate and 1 mole of silver chloride.

The chemical equation for the reaction of sodium hydroxide and silver nitrate follows:

By Stoichiometry of the reaction:

1 mole of sodium hydroxide reacts with 1 mole of silver nitrate produces 1 mole of sodium nitrate and 1 mole of silver hydroxide.

The chemical equation for the reaction of sodium hydrogen phosphate and silver nitrate follows:

By Stoichiometry of the reaction:

1 mole of sodium hydrogen phosphate reacts with 2 moles of silver nitrate produces 2 moles of sodium nitrate and 1 mole of silver hydrogen phosphate.

Hence, the chemical equations are written above.

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

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