Solubility and Properties of Copper(II) Phosphate

The video tutorial explains how to write the equation for copper II phosphate (Cu3(PO4)2) when mixed with water (H2O). It discusses the solubility of copper II phosphate, noting that it is mostly insoluble, with only a tiny amount dissolving. The video then demonstrates how to write the equation for this small dissolved portion, balancing the charges of copper and phosphate ions. The tutorial concludes with a summary of the key points.

What is the chemical formula for copper(II) phosphate?

• Cu3(PO4)2

• Cu3(PO4)3

• Cu(PO4)2

• Cu2(PO4)3

What is the role of solubility rules in determining the behavior of copper(II) phosphate in water?

• They show the temperature change.

• They indicate whether it will dissolve.

• They determine the reaction speed.

• They help predict the color change.

What happens to copper(II) phosphate when it is placed in water?

• It completely dissolves.

• It changes color.

• It reacts violently.

• It remains mostly solid.

What does 'insoluble' mean in the context of copper(II) phosphate?

• It dissolves completely.

• Most of it stays solid, with minimal dissolution.

• It remains entirely solid.

• It reacts with water.

How many copper ions are present in the dissolved form of copper(II) phosphate?

• Three

• Two

• One

• Four

What is the charge on the phosphate ion in the dissolved form of copper(II) phosphate?

• 1-

• 2-

• 4-

• 3-

What does the 'aq' symbol represent in the chemical equation?

• Gaseous state

• Liquid state

• Solid state

• Aqueous solution

What is the main takeaway regarding the solubility of copper(II) phosphate?

• It is mostly insoluble.

• It changes color in water.

• It is highly soluble.

• It reacts with water.

What happens to the majority of copper(II) phosphate in water?

• It changes color.

• It forms a gas.

• It remains a solid at the bottom.

• It dissolves completely.