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Answered

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NCAE Chemistry: Which change would most likely increase the rate of a chemical reaction?
            a. cooling the reaction mixture
            b. decreasing the concentration of the reactants
            c. decreasing the surface area of the reactant
            d. adding a catalyst to the reaction mixture

Sagot :

indrawboy

Adding a catalyst to the reaction mixture would most likely increase the rate of a chemical reaction

Further explanation

In chemical reactions several factors influence:

  • 1. Temperature

The temperature of the reaction that is raised will cause the particles to move more actively so that collisions between particles will become more frequent so that the speed of chemical reactions will be greater

So at higher temperatures the rate of chemical reactions is faster

  • 2. Pressure

Addition of pressure will increase the concentration because the volume is reduced, a greater concentration will accelerate the reaction

or in other words, an increase in pressure will reduce the volume, so the number of collisions between molecules is greater because the distance between molecules is more close together, so that in the end the reaction takes place faster

  • 3. Concentration / substance level

The greater the level, the more substances dissolved and involved in the reaction, thus increasing the speed of the reaction

So the greater the concentration of the reactants, the faster the reaction will be

  • 4. Stirring

The mechanical force applied to the solution that reacts will cause more collisions to accelerate the reaction

So stirring can enlarge the surface area and accelerate collisions

  • 5 Catalysts

Addition of a catalyst to accelerate the reaction without reaction with reactant substances

So catalyst increases reaction speed

  • 6. Surface area

the more surface area, the reaction of substance will be faster

Learn more

Factor in the rate of reaction

https://brainly.ph/question/2566532

a higher temperature increase reaction rate

https://brainly.ph/question/2620649

a reaction rate

https://brainly.ph/question/2563989

the effect of concentration

https://brainly.ph/question/2643731

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