Question

1. anna places an alka - seltzer tablet into a cup of hot water and another into a cup of cool water. which cup will finish the reaction first? justify!

Explanation:

Step1: Recall reaction - rate principle

The rate of a chemical reaction increases with an increase in temperature.

Step2: Analyze the two - cup situation

The alka - seltzer tablet in hot water has a higher temperature environment compared to the one in cool water.

Step3: Determine the faster - reacting cup

Since the reaction rate is higher in hot water, the cup with hot water will finish the reaction first.

Answer:

The cup with hot water will finish the reaction first because the rate of a chemical reaction increases with an increase in temperature.