26.1Q) Alka-Seltzer Quiz

What are the main components of Alka-Seltzer?

• Aspirin, citric acid, and sodium bicarbonate

• Aspirin, acetic acid, and sodium chloride

• Paracetamol, citric acid, and sodium chloride

• Ibuprofen, acetic acid, and sodium bicarbonate

What type of reaction occurs when Alka-Seltzer is dissolved in water?

• Precipitation reaction

• Combustion reaction

• Acid-base reaction

• Oxidation-reduction reaction

Which gas is released during the dissolution of Alka-Seltzer?

• Nitrogen

• Carbon dioxide

• Oxygen

• Hydrogen

What is the role of a catalyst in a chemical reaction?

• To lower the activation energy

• To increase the temperature

• To increase the concentration of reactants

• To change the orientation of molecules

Which factor does NOT affect the reaction rate of Alka-Seltzer?

• Temperature

• Concentration

• Particle size

• Color of the solution

What is the independent variable in the Alka-Seltzer experiment?

• Particle size of the Alka-Seltzer tablets

• Amount of water used

• Temperature of the water

• Time taken for the reaction

What is the dependent variable in the Alka-Seltzer experiment?

• Amount of water

• Temperature

• Particle size

• Reaction rate

What is the effect of stirring on the reaction rate of Alka-Seltzer?

• It increases the particle size

• It changes the color of the solution

• It promotes contact between reactants

• It decreases the reaction rate