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svetoff [14.1K]
3 years ago
7

What does the formula 2n2 represent?

Chemistry
1 answer:
lutik1710 [3]3 years ago
6 0
Here, Your Formula: 2n²

In Chemistry, it usually uses in Electronic Configuration, means 2 electrons are filled in second principal Quantum number.

Hope this helps!
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Methane gas reacts with oxygen in a gas stove.
nekit [7.7K]

Hey there!

CH₄ + 2O₂ → CO₂ + 2H₂O

carbon dioxide: product

methane: reactant

oxygen: reactant

water: product

Methane and oxygen are reactants because they are the substances we start with. They are on the side of the equation that the arrow is pointing away from.

Carbon dioxide and water are products because they are the new substances  that are the yields of the equation. They are on the side of the equation that the arrow is pointing towards.

Hope this helps!

7 0
3 years ago
Chemistry
madam [21]

Answer: 1. 3.914 × ^10-4 | 2. 4.781 × ^10-1

Explanation:

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3 years ago
Read the excerpt from Levitt and Dubner’s Freakonomics.
VARVARA [1.3K]

Answer:

The answer is D

Explanation:

5 0
3 years ago
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C3h8 + 5 o2 --> 3 co2 + 4 h2o this is an example of a _______________.
drek231 [11]
<span><u><em>Answer:</em></u>
combustion reaction

<u><em>Explanation:</em></u>
In chemistry, a <u>combustion reaction</u> is defined as a reaction between an oxidant and any compound that leads to the production of another compound along with a huge amount of heat.

<u>Now, let's check the reaction given:</u>
C</span>₃H₈<span> + 5 O</span>₂<span> --> 3 CO</span>₂<span> + 4 H</span>₂O<span>
<u>The oxidant</u> is oxygen gas
<u>The compound reacting</u> is propane
<u>The compound produced</u> is carbon dioxide along with water vapor and heat

Therefore, the given reaction is a combustion reaction

Hope this helps :)</span>
5 0
3 years ago
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When does the electron release the greatest amount of energry as it moves from one level to another?
gayaneshka [121]
I can't see the picture, but in general, I believe it is in dropping from the first energy level above the ground state, to the ground state.
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