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Vlad1618 [11]
3 years ago
13

Why is energy required to break a covalent bond

Chemistry
2 answers:
Liono4ka [1.6K]3 years ago
6 0
Because when a chemical reaction occurs. molecular bonds are broken and other bonds are formed to make different molecules. Like for example: two bonds of water molecules are broken up into hydrogen and water form. Energy is required to break a bond.

Hope this helped :) 
zmey [24]3 years ago
4 0
 Energy<span> is always </span>required to break<span> a </span>bond<span>, which is known as </span>bond energy<span>.</span>
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Please help me out i will give you brainlist. 0.500 is wrong
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<h3>Answer:  b) 0.250 mol</h3>

============================================

Work Shown:

Using the periodic table, we see that

  • 1 mole of carbon = 12 grams
  • 1 mole of oxygen = 16 grams

These are approximations and these values are often found underneath the atomic symbol. For example, the atomic weight listed under carbon is roughly 12.011 grams. I'm rounding to 2 sig figs in those numbers listed above.

So 1 mole of CO2 is approximately 12+2*16 = 44 grams. The 2 is there since we have 2 oxygens attached to the carbon atom.

-------------------

Since 1 mole of CO2 is 44 grams, we can use that to convert from grams to moles.

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In short,

11.0 grams of CO2 = 0.250 mol of CO2

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We don't need to use any of the information in the table.

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