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Dmitrij [34]
3 years ago
14

To overcome an energy barrier between reactants and products in a chemical reaction, energy must be provided to get the reaction

started. this energy, which is recovered as the reaction proceeds, is called:
Chemistry
1 answer:
USPshnik [31]3 years ago
4 0
Activation energy~~~~~~~~~
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Name the 3 elements, in order, that make up a very important part of Thanksgiving. (Spell out a word with chemical symbols)
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Answer:

eat well, stay well, and have fun ∛π⇅πΔΔΔ≅≅⇵↑↓∫∫↑

Explanation:

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Name a device or other object whose major purpose is to convert
Alenkinab [10]

Answer:

Storage battery oe cell

Explanation:

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During charging of battery, there is some chemical changes in the battery and absorb energy. The absorbed energy is converted into electrical energy when connected to an external load.

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4 years ago
What is the pressure of 0.33 moles of nitrogen gas, if its volume is 15.0 L at –25.0oC?
musickatia [10]

Using the ideal gas law PV =nRTPV=nRT , we find that the pressure will be P =\frac{nRT}{V}P=

V

nRT

​

 . Then, we'll substitute and find the pressure, using T = -25 °C = 248.15 K and R = 0.0821 \frac{atm\cdot L}{mol \cdot K}

mol⋅K

atm⋅L

​

 :

P =\frac{nRT}{V} = \frac{(0.33\,\cancel{mol})(0.0821\frac{atm\cdot \cancel{L}}{\cancel{mol \cdot K}})(248.15\,\cancel{K})}{15.0\,\cancel{L}} = 0.4482\,atmP=

V

nRT

​

=

15.0

L

​

(0.33

mol

)(0.0821

mol⋅K

atm⋅

L

​

​

)(248.15

K

​

)

​

=0.4482atm

In conclusion, the pressure of this gas is P=0.4482 atm.

Reference:

Chang, R. (2010). Chemistry. McGraw-Hill, New York.

3 0
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All fossils were formed from .
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4 years ago
In a chemical formula the right side is called?
Ghella [55]

Answer:

Product

Explanation:

It is written at the right side of an arrow

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