Crit C science cards

Reaction Rate: The speed at which reactants are converted into products, often measured by the rate of gas production (e.g., CO2).

Catalyst: Not applicable directly in this reaction, but you might discuss how impurities could affect the reaction rate.

Concentration: The amount of hydrochloric acid per unit volume, which affects the reaction rate.

Molarity: A measure of concentration expressed as moles of solute per liter of solution.

Purity: The degree to which hydrochloric acid is free from contaminants, which can influence the reaction rate.

Independent Variable: The factor being changed, such as the purity or concentration of hydrochloric acid.

Dependent Variable: The factor being measured, such as the volume of carbon dioxide produced or the time taken for a specific reaction to occur.

Controlled Variables: Factors kept constant to ensure a fair test, such as temperature, pressure, and volume of calcium carbonate.

Effervescence: The process of gas bubbles forming and escaping, observed as carbon dioxide is produced.

Endothermic/Exothermic: The reaction is typically exothermic, releasing heat.

Neutralization Reaction: Although not a perfect fit, the reaction can be considered a type of neutralization since an acid reacts with a base (calcium carbonate acts as a base in this context).

Gas Collection: The method used to measure the volume of carbon dioxide produced, often via a gas syringe or inverted measuring cylinder.

Rate of Gas Production: A measure of how quickly carbon dioxide is produced, reflecting the reaction rate.

Saturation Point: Not directly applicable but could refer to the point at which the reaction rate no longer increases with higher acid concentration due to other limiting factors.

pH: The measure of acidity, which decreases as the reaction proceeds due to acid consumption.

Buffering Capacity: Not directly relevant but could be discussed if impurities in the acid affect pH stability.

Precision and Accuracy: Terms used to evaluate the reliability of experimental results.