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Sergeu [11.5K]
3 years ago
5

What is an example of an exothermic reaction? Why might an exothermic reaction be beneficial to humans?

Biology
1 answer:
Oduvanchick [21]3 years ago
6 0

Answer:

<h3>8 Examples of Exothermic Reaction in Everyday Life</h3>
  • Ice Cubes. When water freezes into ice cubes, the energy is released in the form of heat. ...
  • Formation Of Snow In Clouds. The process of snow formation is an exothermic reaction. ...
  • Hot Packs. ...
  • Rusting Of Iron. ...
  • Burning Of Candles. ...
  • Lightning Of Match. ...
  • Setting Cement And Concrete.

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Answer:

b energy level of outer electrons

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What is the general relationship between a star's mass and its lifetime?
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Also, to maintain their phenomenal heat, they have to do this to maintain internal pressure and therefore the fusion that powers them, they have to burn quickly to replace the excess heat they radiate away into outer space.

Currently our sun radiates away 4 Million Tonnes of mass every second, that only amounts to a miserly 0.0000001% of its entire mass. Imagine how much mass larger and larger stars lose every second.

The smallest stars, born at the red dwarf level can burn for trillions of years (at closest estimate). Compared with the Supergiant's, the big boys who were born in abundance during the birth of the universe burn out and explode in supernovae after only around 200 Million years. A whisper compared to the life of our Sun which is estimated to run out of fuel after at the ripe of age of 10 billion years.</span><span> </span>
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3 years ago
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antoniya [11.8K]

Explanation:

5. The larger the cell, the harder it is to get nutrients and gases to move in and out of the cell.

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A transform boundary occurs where plates slide against each other.
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