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kaheart [24]
3 years ago
6

Which of these is an example of a chemical reaction that occurs at a very fast rate?

Chemistry
2 answers:
Aloiza [94]3 years ago
7 0
I believe the answer is an explosion
Sonbull [250]3 years ago
7 0

Answer: Option (c) is the correct answer.

Explanation:

A reaction which is able to occur in fraction of seconds or which is able to occur at an instant rate of time means that reaction is at a very fast rate.

Rusting of iron is not an immediate process as it occurs due to the humidity  present within the air an oxide layer develops on the surface of iron. This layer formation does not occur in an instant.

Photosynthesis is a process of formation of food by  the plants for themselves in the presence of air, sunlight, carbon dioxide and water.

Rotting wood also takes time and may occur over a period of month or more.

An explosion is an instantaneous process as it occurs within a fraction of seconds.

Thus, we can conclude that out of the given options an explosion is an example of a chemical reaction that occurs at a very fast rate.

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Leviafan [203]

Answer: b

Explanation:

By adding heat you are adding more energy

5 0
3 years ago
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Phenolphthalein indicator is??
Aleonysh [2.5K]

Answer:

Hey mate.....

Explanation:

This is ur answer.....

<em>Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.</em>

Hope it helps!

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7 0
2 years ago
How does a graph simulate radioactive daughter products? (Using pennies)
mariarad [96]

Answer:

Certain types of atoms are "radioactive," meaning that they will eventually decay, or "break down" into a different type of atom. In this activity, you will simulate radioactive decay by flipping coins. Coins that land tails-up "decay," and coins that land heads-up remain the same.

Explanation:

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5 0
2 years ago
For which of the following reactions is ΔH∘rxn equal to ΔH∘f of the product(s)?
nexus9112 [7]
<span>The correct answers are A, B, and D. The ΔHrxn is equal to the ΔHf when the ΔHf of the reactants is zero, and this can only occur when the reactants are pure elements (not compounds) in their natural phase at ambient temperature.

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6 0
3 years ago
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Answer:

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Explanation:

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