Chemistry Concepts: Alka-Seltzer and Reaction Principles

Front

What is Alka-Seltzer?

Back

A commercially available antacid and pain reliever that contains a mixture of ingredients, typically including aspirin, citric acid, and sodium bicarbonate (baking soda).

Front

What is particle size?

Back

The diameter or size of individual particles of a substance.

Front

What is surface area in the context of Alka-Seltzer?

Back

The total area of the surface of a substance. Crushing the Alka-Seltzer tablets increases their surface area.

Front

What is reaction rate?

Back

The speed at which a chemical reaction occurs, often measured by the amount of product formed per unit time.

Front

What is collision theory?

Back

A theory that states that chemical reactions occur when reactant molecules collide with sufficient energy and with the correct orientation.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

What is concentration?

Back

The amount of a substance present in a defined space.

Front

What are reactants in the context of Alka-Seltzer?

Back

The substances that are present at the beginning of a chemical reaction, such as the components of the Alka-Seltzer tablet (citric acid and sodium bicarbonate) and water.

Front

What are products in the context of Alka-Seltzer?

Back

The substances that are formed as a result of a chemical reaction, including carbon dioxide gas, water, and sodium citrate.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of atoms and molecules to form new substances.