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Paladinen [302]
2 years ago
12

In a laboratory, a student combines vinegar and baking soda into a beaker. The initial temperature is 28 degrees Celsius and the

final temperature reading two minutes later is 20 degrees Celsius.
1. What happened to the heat in the surroundings?


2. Did an endothermic or exother mic reaction occur​
Chemistry
1 answer:
creativ13 [48]2 years ago
8 0

The reaction is endothermic because the temperature dropped from  28 degrees Celsius to  20 degrees Celsius.

<h2 /><h2>Meaning of endothermic and exothermic reaction:</h2>

An endothermic reaction is one in which heat is absorbed from the surrounding resulting in decrease in temperature while an exothermic reaction is one in which heat is evolved causing the temperature to rise.

In the particular context of this question, the reaction is endothermic because the temperature dropped from 28 degrees Celsius to 20 degrees Celsius. The heat in the surroundings decreased.

Learn more about endothermic reaction: brainly.com/question/2192784

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A scientist could use DNA as a molecular clock to do which of the following? (2 points)
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Explanation:

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<u>-to determine how long ago two species of animals shared an ancestor</u>

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Further Explanation:

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Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly  

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A neutralization reaction is a reaction between choose. That results in the formation of choose. And choose.
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Neutralization reaction is the reaction that occur between acid and base.

<h3>What is Neutralization reaction?</h3>

Neutralization reaction is the reaction that take place between acid and base to produce salt and water. For examples HCl react with NaOH to produce NaCl and H2O

Therefore, Neutralization reaction is the reaction between acid and base.

The question is not complete but the option are gotten from another website.

Here are the options.

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Learn more about neutralization from the link below.

brainly.com/question/4090568

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