Calcium Ion Test Quiz

What indicates the presence of calcium ions when sodium hydroxide is added to the solution?

• The solution becomes clear

• A color change to blue

• A white precipitate forms

• Bubbles are produced

What happens to the white precipitate when excess sodium hydroxide is added?

• It dissolves completely

• It turns into a different color

• It remains insoluble

• It forms bubbles

How does the reaction of calcium ions with ammonia differ from that with sodium hydroxide?

• It produces a bright yellow precipitate

• It results in a significant white precipitate

• It forms little to no precipitate

• It creates a strong odor

Why does the reaction with ammonia not produce a significant precipitate?

• The solution is too acidic

• Calcium ions are absent

• There are not enough hydroxide ions

• Ammonia reacts too quickly

What is the solid product formed when calcium ions react with hydroxide ions?

• Calcium carbonate

• Calcium hydroxide

• Calcium chloride

• Calcium sulfate