In a study of the reaction of magnesium with hydrochloric acid, two experiments were carried out.

Each uses 1 g of magnesium ribbon, and 50 mL of hydrochloric acid was added to each reaction flask.
One of the hydrochloric acid solutions added was more concentrated than the other one.

****This is because there are more _?_ available to collide with the _?__

How did you derive your answers?? .

acid ions, magnesium

Based on the given information, it is mentioned that one of the hydrochloric acid solutions added was more concentrated than the other one. In this context, the term "concentration" refers to the amount of solute present in a given amount of solvent or solution.

To answer the question of why one solution is more concentrated than the other, we need to consider the factors that can affect concentration. In this case, concentration usually depends on the number of solute particles present in a given volume of solution.

The key concept to understand here is that concentration is measured by the number of moles of solute per unit volume of the solution. In a chemical reaction, the reaction rate is governed by the frequency of successful collisions between reactant particles.

In the given scenario, the number of particles available to collide with each other is a crucial factor in determining the reaction rate. When one hydrochloric acid solution is more concentrated than the other, it means that there are more hydrochloric acid particles per unit volume in that solution.

Therefore, more concentrated solution means there are more hydrochloric acid particles available to collide with the magnesium ribbon. The increased number of collisions between reactant particles increases the chances of successful collisions, leading to a higher reaction rate.

In summary, the higher concentration of one hydrochloric acid solution provides more hydrochloric acid particles available to collide with the magnesium ribbon, resulting in a faster reaction rate.