Increasing the polarity of the solvent can affect the rate of the reaction between hydrochloric acid HCl and magnesium Mg in several ways. The reaction between HCl and Mg is as follows:Mg s + 2 HCl aq MgCl2 aq + H2 g 1. Solvent polarity affects the solubility of reactants: A more polar solvent can increase the solubility of hydrochloric acid, leading to a higher concentration of HCl in the solution. This can increase the frequency of collisions between HCl and Mg particles, potentially increasing the reaction rate.2. Solvent polarity affects the ionization of reactants: A more polar solvent can better stabilize the ions formed during the reaction, such as H+ and Cl- ions from HCl and Mg2+ and Cl- ions from MgCl2. This can lead to a faster reaction rate as the ions are more likely to interact with each other and form products.3. Solvent polarity affects the activation energy of the reaction: A more polar solvent can lower the activation energy of the reaction by stabilizing the transition state, making it easier for the reaction to proceed. This can lead to an increase in the reaction rate.4. Solvent polarity affects the viscosity of the solution: A more polar solvent can increase the viscosity of the solution, which can slow down the movement of particles and decrease the frequency of collisions between HCl and Mg particles. This can lead to a decrease in the reaction rate.Overall, the effect of increasing the polarity of the solvent on the rate of the reaction between hydrochloric acid and magnesium will depend on the balance between these factors. In general, a more polar solvent is likely to increase the solubility and ionization of the reactants, which can lead to an increase in the reaction rate. However, the effect on viscosity and activation energy may counteract this effect, leading to a more complex relationship between solvent polarity and reaction rate.