Question

These coupled reactions are called an iodine clock reaction. Why? What are the factors that can affect the rate of a chemical reaction? 1 The Lactas that ean aliect he ate of a chernical actom What interaction is responsible for the dark purple color? d. 2. For this experiment a Give the chemical equation for the reaction whose rate is being studied. e Why would the color change be so sudden not gradual? b. Give the chemical reaction that will enable you to know AlS:Or -25-

Answer 1

Here is the Solution:

rate of a chemical that can affect the The factors reaction are We Rnow nat, Speed othe rate of a reaction describes the the chemical realdion (1 Temperature we increase the the reartant the molecules wil move rate the reaction temperature f When faster which increases the ) Concentration Higher the concentraton the solutan ih the same therefore chances collsfon which results faster the means molecule move Space more reacticn ( Pressure a reaction fs the that means more Increasing the pressure same as incr eas ny the no. of coll'sion occur Henie, the rate o the reacton ncrease s Loncentraton The property fa catayst is, it ihcreases 1f it present then v) Catalyst / the rate the rate o a reaction reaction hereases. (v) molecule avalable for coll fsfon Surface area 1ncreasfuy the surfate area makes more which resSults the the reaction fncreasing the rate

Thanks! :)