Hydrochloric acid and Sodium thiosulfate produce a precipitate. Watch this video and answer how does INCREASING the concentration of reactants affect the rate of reaction?

a
It slowed down the rate of reaction
b
It did not affect the rate of reaction
c
It increased the rate of the reaction

c

To determine how increasing the concentration of reactants affects the rate of reaction between hydrochloric acid and sodium thiosulfate, we need to watch the provided video. Please share the video link or any further information about the experiment so that I can provide a more accurate answer.

To determine how increasing the concentration of reactants affects the rate of reaction, you can watch the given video and observe the changes in the reaction's rate. Since I am an AI text-based model and cannot watch videos, I am unable to provide a direct answer based on the video. However, I can explain the general principle behind how increasing reactant concentration can affect the rate of a reaction.

Increasing the concentration of reactants typically increases the rate of a chemical reaction. This is due to the collision theory, which states that for a reaction to occur, particles must collide with each other with sufficient energy and proper orientation. When the concentration of reactants is increased, there are more particles in the given volume, leading to an increased frequency of collisions.

With more collisions occurring, there is a higher likelihood of successful collisions where reactants form products. Consequently, the reaction rate increases. This can be observed by a faster appearance of the precipitate or other observable changes in the reaction.

To answer the specific question regarding the video you mentioned, you would need to watch the video and observe the impact of increasing the concentration of hydrochloric acid and sodium thiosulfate on the rate of the reaction. Based on your observations, you can then select the appropriate option: (a) slowed down the rate of reaction, (b) did not affect the rate of reaction, or (c) increased the rate of the reaction.