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Which of the following statement correctly describes the student’s observation? CaO- calcium Oxide reaction with water is regarded as exothermic. A student mixes these two products in a test tube and touches its side surface.



A. The test tube becomes cold due to release of heat energy
B. The test tube becomes hot due to release of heat energy
C. The test tube becomes hot due to absorption of heat energy
D. The test tube becomes cold due to absorption of heat energy

This question is part of Chemical Reactions and Equations
Asked by Jagran josh, Last updated: Jan 22, 2020

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2 Answers

N. Kingsley

N. Kingsley, Writer, Columbus

Answered Aug 28, 2018

In a lab, the students or scientists must make observations from the experiments that they are conducting. When a student mixes chemicals in a lab, they may need to be aware of the results....Read More
 

jagran josh

Jagran josh

Answered Dec 11, 2017

The test tube becomes hot due to release of heat energy
 

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