Please write an Initial Post of 275 words and 2 Replies of 100 words each.
Initial Post will be on the following:
By referencing (use APA citations) from the internet, textbook, or research article, post one chemical reaction that is considered an exothermic reaction and another one that is considered as an endothermic reaction.
State why you chose these 2 reactions (1 exothermic and 1 endothermic).
Add the applications of the 2 reactions you chose.
First Reply:
For my examples I tried to choose some that were relatable to our every day lives (and I love to bake and these examples relate to that)!
For my exothermic reaction I thought burning sugar is a good example! I chose this because it is something that most of us have probably done so we have this real-life experience! When it comes to the application of burning sugar, I don’t think anyone would purposefully do so, considering this is usually accidentally done in baking. This happens when sugar is brought to a temperature that is too high. Usually this happens in an attempt to melt it. This is an exothermic process because heat is released.
For my endothermic example, I chose baking bread because I actually did this the other day and I’m sure many of us have baked bread before and are familiar with what some common ingredients are and what happens as it bakes! This is an endothermic process because ingredients in the bread absorb heat and a chemical reaction happens!
Betts, J. (n.d.). Simple Endothermic Reaction Examples. Example Articles & Resources. https://examples.yourdictionary.com/simple-endothermic-reaction-examples.html
(Links to an external site.)
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What are some examples of exothermic and endothermic processes? General Chemistry Online: FAQ: Energy and chemical change: What are some examples of exothermic and endothermic processes? (n.d.). https://antoine.frostburg.edu/chem/senese/101/thermo/faq/exothermic-endothermic-examples.shtml
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Second Reply:
For my examples, I picked things that I can relate to. For my Exothermic reaction, I picked snow formation. I am originally from Connecticut and we had some very snowy winters. For my Endothermic example, I chose cooking an egg. Breakfast is my favorite meal of the day, (especially breakfast for dinner lol).
The exothermic reaction from snow formation is explained below,
Snow is precipitation from the water vapor in the atmospheric clouds in the form of ice crystals. Snow falls from clouds as white flakes. When the temperature reaches below 0 ⁰C or 32 ⁰F, the water changes from liquid to solid (freezing).
H2O (l) → H2O (s) + heat
The endothermic reaction of cooking an egg, You might not have realized cooking an egg was an endothermic reaction. However, energy from the pan is absorbed to cook the egg in this endothermic reaction. Try it at home! It’s a yummy example.
Betts, J. Certified Teacher
https://examples.yourdictionary.com/simple-endothermic-reaction-examples.html
(Links to an external site.)
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