Alka-Seltzer Reaction Quiz

What is the initial reaction when an Alka-Seltzer tablet is placed in water?

• It changes the color of the water.

• It forms tiny bubbles of carbon dioxide.

• It dissolves without any visible change.

• It sinks to the bottom and stays there.

What role do the carbon dioxide bubbles play in the reaction?

• They change the color of the water.

• They make the water boil.

• They dissolve the Alka-Seltzer tablet.

• They attach to the blobs of colored water.

What happens to the colored water blobs when the bubbles pop?

• They float to the top and stay there.

• They change color.

• They dissolve in the water.

• They sink back to the bottom.

How does the cycle of rising and sinking blobs continue?

• Until the bubbles stop forming.

• Until the water changes color.

• Until the Alka-Seltzer is used up.

• Until the water evaporates.

What is the final outcome when the Alka-Seltzer tablet is completely used up?

• The water starts boiling.

• The cycle of rising and sinking stops.

• The blobs remain at the surface.

• The water changes color permanently.