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Tpy6a [65]
2 years ago
6

What are the challenges for a "sustainable" world of lithium ion batteries?

Chemistry
1 answer:
Neporo4naja [7]2 years ago
7 0

The Lithium-ion Battery Problem

Overheating. They overheat and explode if charged too fast.

Short life time. They die after less than 1,000 charge/discharge cycles.

Flammable. They use chemicals that are flammable. ...

Toxic. ...

Underperform in extreme temperatures. ...

Expensive casing. ...

Expensive to transport.

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Predict whether the following reactions will be exothermic or endothermic.
Solnce55 [7]

Answer:

A. N₂(g) + 3H₂(g) -----> 2NH₃    exothermic

B. S(g) + O₂(g) --------> SO₂(g)    exothermic

C. 2H₂O(g) --------> 2H₂(g) + O₂(g) endothermic

D. 2F(g) ---------> F₂(g) exothermic

Explanation:

The question says predict not calculate. So you have to use your chemistry knowledge, experience and intuition.

A. N₂(g) + 3H₂(g) -----> 2NH₃    is exothermic because the Haber process gives out energy

B. S(g) + O₂(g) --------> SO₂(g)    is exothermic because it is a combustion. The majority, if not all, combustion give out energy.

C. 2H₂O(g) --------> 2H₂(g) + O₂(g) is endothermic because it is the reverse reaction of the combustion of hydrogen. If the reverse reaction is exothermic then the forward reaction is endothermic  

D. 2F(g) ---------> F₂(g) is exothermic because the backward reaction is endothermic. Atomisation is always an endothermic reaction so the forward reaction is exothermic

5 0
3 years ago
A 0.100 m solution of HCl dissolved in benzene has a freezing point depression of 0.512oC, while an 0.100 m solution of HCl in w
EleoNora [17]

Answer:

C

Explanation:

It said in water it had a freezing point of 0.352oC. so right i the start i picked C because it sounds like it doesn't dissociates in water so that is my answer

  • Hope this helps
  • This is my answer
  • Ask any questions if wrong plz and thank you
7 0
3 years ago
I give brainliest
Tatiana [17]

Answer: During winter the Northern Hemisphere leans away from the sun, there are fewer daylight hours and the sun hits us at an angle. This makes it appear lower in the sky. In equatorial regions the length of days and the directness of sunlight don't change as much.

Hope this helps :)

8 0
3 years ago
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(04.02 LC) Based on the cell theory, which of the following is true?
prohojiy [21]

Answer:

c

Explanation:

there are billions of cells in living things. We are made out of millions of cells

4 0
2 years ago
In ____________, electrons are gained by atoms and lost by others
Nat2105 [25]
In ions atoms lose and gain electrons
3 0
3 years ago
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