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barxatty [35]
3 years ago
11

Which of the following is an example of chemical energy being released or stored?

Chemistry
1 answer:
Monica [59]3 years ago
7 0

Answer:

C

Explanation:

When something is chemical it is warped into a completely new substance and when coal is burned it is new so it is definitely C.

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What elements are being reduced and oxidized in this chemical formula?
dangina [55]

Answer: The element Na (Sodium) is getting oxidized and Hydrogen is getting reduced.

Explanation:

Oxidation reactions are the reactions in which addition of oxygen takes place.

Reduction reactions are the reactions in which loss of oxygen takes place.

For a given reaction:

2Na(s)+2H_2O(l)\rightarrow H_2(g)+2NaOH(aq.)

Sodium is getting oxidized because there is an addition of reaction with that element.

Hydrogen is getting reduced because there is a removal of oxygen with that element.

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3 years ago
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Aleksandr [31]
The answer is c maybe
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3 years ago
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aleksklad [387]
Given:
Be - Beryllium   -   9,3227
C   - Carbon      - 11,2603
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Ne ; F ; N ; O ; C ; Be ; B ; Li
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Some pairs of safety glasses have magnifying glasses on them, similar to bifocals. They can be used to more carefully examine something in an experiment.
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4 years ago
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