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During an investigation, the contents of two test tubes were mixed in two different water baths at different temperatures. A record of the investigation is shown below:

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Investigation Record
Water Bath Temperature of Bath Substances in Test Tubes
1 160 °F one test tube with deep blue colored starch and iodine solution; one test tube with saliva solution
2 80 °F one test tube with deep blue colored starch and iodine solution; one test tube with saliva solution


The deep blue color of the starch and iodine solution disappears when it reacts with saliva. Which of the following best explains the rate of disappearance of the color when the substances in the test tubes were mixed?
Faster in Bath 1 as molecules collide more frequently in Bath 1 than Bath 2
Faster in Bath 2 as molecules collide more frequently in Bath 2 than Bath 1
Faster in Bath 1 as molecules move slower in Bath 1 than Bath 2
Faster in Bath 2 as molecules move slower in Bath 2 than Bath 1

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2005AngelMoore

B hope this helps you Good Luck

b0blikezcheez

Alright i know this question was asked years ago, but for those who still need the answer, it would be A.

The reason why, is because when particles move faster, and the speed of the molecular movement would increase along with the particle alignment, hence the answer is A.

I hope this helped and if it is incorrect i will edit it.

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