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Juliette [100K]
3 years ago
12

2 C2H2(g) + 5 O2(g) → 4 CO2(g) + 2 H2O(g)

Chemistry
1 answer:
a_sh-v [17]3 years ago
7 0

Answer:

Not approved but I think 4(-393.5)+ 2(-241.8)) – (2(227) + 5(0))

The enthalpy change is -2511.6.

Explanation:

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if there would have been no decomposers on Earth, the whole of the Earth would have been filled with dead and decaying matter of plants and animals.

Explanation:

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A superconductor performs best at very cold temperatures.


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take two carbon atoms and join by two springs making a double bond. complete the ethene moleeule by adding two hydrogen atoms to
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Ethene (H2C=CH2) is a gaseous by-product of the long-chain hydrocarbons that are cracked to create highly sought-after goods like gasoline and aviation fuels.

<h3>What is ethene used for?</h3>
  • The uses of ethene include: It is employed in the creation of polythene. It is used to make fruits artificially ripe.
  • Ethene is also utilised to create other beneficial molecules such ethanol, oxyethylene flame, and ethylene glycol, which is used as an antifreeze.
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brainly.com/question/28225088

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7 0
2 years ago
Question 4 (1 point)<br> If you have exactly one million atoms how many moles do you have?
rjkz [21]

Answer:

                       1.66 × 10⁻¹⁸  Moles

Explanation:

                     As we know one mole of any substance contains 6.022 × 10²³ particles (atoms, ions, molecules or formula units). This number is also called as Avogadro's Number.

The relation between Moles, Number of Atoms and Avogadro's Number is given as,

             Number of Moles  =  Number of Atoms ÷ 6.022 × 10²³ Atoms/mol

Putting values,

              Number of Moles  =  1.0 × 10⁶ Atoms ÷ 6.022 × 10²³ Atoms/mol

              Number of Moles  =  1.66 × 10⁻¹⁸  Moles

7 0
4 years ago
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