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  Question 33 of 37   Physical Behavior of Matter
This question may require the use of the Chemistry Reference Tables or the Periodic Table of Elements.

What occurs as potassium nitrate is dissolved in a beaker of water, indicating that the process is endothermic?


 1.  The temperature of the solution decreases.

 2.  The temperature of the solution increases.

 3.  The solution changes color.

 4.  The solution gives off a gas.

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