Question

which acid solution will react the fastest with a 1 cm piece of mg ribbon? 1.0 m 0.1 m 2.0 m

Explanation:

Step1: Recall reaction rate factors

Reaction rate between Mg and acid depends on acid concentration (molarity, M). Higher concentration means more acid particles per volume, increasing collision frequency.

Step2: Compare the concentrations

The three solutions have concentrations: 1.0 M, 0.1 M, and 2.0 M. Among these, 2.0 M is the highest concentration.

Step3: Determine the fastest reaction

A higher concentration of acid (2.0 M) will react faster with Mg ribbon because there are more acid molecules available to collide with the Mg surface, leading to a quicker reaction rate.

Answer:

The acid solution with a concentration of 2.0 M (the right - most flask with "2.0 M" label) will react the fastest with the 1 cm piece of Mg ribbon.