1. A chemical reaction is taking place between two reactants dissolved in a liter of water. If an

additional liter of pure water is added to the reaction mixture, what will be the effect on the

reaction rate?

The reaction rate will DECREASE.

Explanation:

Chemical reaction occurs through the combination of chemical reactants to form new products. The rate if this reaction is affected by the following factors:

- the chemical nature of the reacting substances,

- the state of subdivision (one large lump versus many small particles) of the reactants,

- the temperature of the reactants,

- the concentration of the reactants, and

- the presence of a catalyst.

When additional liter of pure water is added to the reaction mixture, collision between reactant molecules is reduced The dilution causes the concentration of the reactants to reduce. This in turn affects the rate of chemical reactions as the decreased concentration of reactants leads to a decrease in the reaction rate.

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8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.