True or False: A catalyst will always speed up a reaction. A catalyst will always provide an alternate mechanism for a reaction.

Classify the actions based on how they could affect a reaction rate. Rate increases Rate decreases Rate is unaffected Answer Bank decrease the concentration of a reactant decrease the surface area of a solid reactant increase the temperature add a catalyst

Which of the following chemical kinetic (reaction rates) factors in biological systems results in a more efficient system? Group of answer choices Decreased activation energy. Large cell size. Liquid state of cells. Solid state of cells. Lower body temperature.

Which of the following statements is true about reaction rates? A Reaction rates can be predicted from the coefficients of the balanced equation. B Reactants usually disappear faster than the products appear. C Reactants usually disappear slower than the products appear. D Reaction rates can only be determined by experimentation.

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State whether the following changes will result in an increase in the reaction rate, a decrease in the reaction rate, or whether the reaction rate will be unaffected. •decreasing the surface area of a reactant •decreasing the concentration of a product •increasing the temperature •adding a catalyst

What effect does a catalyst have on the reaction rate and the products formed in a reaction? The catalyst increases the amount of products formed at the end of the reaction. The catalyst provides an alternate pathway with lower activation energy. The catalyst has no effect on the amount of products formed at the end of the reaction. O The catalyst has no effect on the activation energy.

Which of the following statements are false with respect to rate laws? Select all that apply. □ Catalysts can't be included in the rate law. □ Intermediates can't be included in the rate law. □ Products can't be included in the rate law. □ Rate Laws don't have to include a rate constant.□ Reactants can't be included in the rate law. □ The orders with respect to each species is directly related to the coefficient in the overall reaction

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The rate of a reaction is how quickly the reaction goes to completion. If two reactions have the same amount of reactant, increasing the rate does not increase the amount of product produced, it simply reduces the time that it takes to make the product.    Using the internet , research the two factors below that affect the rate of a chemical reaction.    1)Temperature  ( add an example and be very detailed add graphs as well)   2) Presence of a catalyst.    ( add an example and be very detailed add graphs as well)    Your work should be written in complete sentences, and assume your audience is grade 11 chemistry students who do not understand this unit. Make sure all research is put into your own words!