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lord [1]
2 years ago
5

Which is an accurate description of what occurs when a log burns?

Biology
2 answers:
Nana76 [90]2 years ago
8 0
It's d
It can't be A because energy can't be created or destroyed.
It cant be C because energy doesn't take enough of a role in the light of the fire.
It can't be B because the compounds are not changing.
Alika [10]2 years ago
4 0

Answer:

d. The molecules present in the log are transformed into molecules that contain less energy than the original molecules. The energy difference is the heat of the fire

Explanation:

When a log of wood burns, Oxygen must be present because it is a combustion reaction. A log of wood is composed of organic materials and the main organic material present is Carbon.

Due to the fact that Oxygen is present, Carbon reacts with Oxygen to form Carbon dioxide which contains lesser energy than Carbon.

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About 21% of oxygen and 0.4% of carbon dioxide of air is inhaled while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide because cells use oxygen inhaled to release energy and carbon dioxide as byproduct.

<h3>How does Cellular Respiration work?</h3>

Cellular respiration is how organisms convert fuel into energy and nutrients by combining oxygen with food molecules, sending the chemical energy for life sustaining activities while expelling carbon dioxide and water.

We inhale 21% of oxygen and 0.4% of carbon dioxide and exhale 16.4% of oxygen and 4.4% of carbon dioxide as by product during the process of cellular respiration.

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Coach Taylor is trying to explain the negative side effects smoking has to athletic performance. Which of these options include
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Answer:

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Explanation:

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