<h3><u>Answer;</u></h3>
Both aldehydes and ketones can hydrogen bond with water molecules. ethanal has a higher BP than ethane ketones are polar molecules
<h3><u>Explanation;</u></h3>
- An aldehyde differs from a ketone by having a hydrogen atom attached to the carbonyl group, which makes aldehydes very easy to oxidise.
- Ketones lack hydrogen atom and are resistant to oxidation and are only oxidised by powerful oxidising agents which have the ability to break carbon-carbon bonds.
- <em><u>Both aldehydes and ketones are polar molecules because of the presence of the carbon-oxygen double bond, which means they can form hydrogen bonds with water molecules</u></em>.
I think the correct answer from the choices listed above is the first option. Chemical reactions are more likely to happen when electrons are in an excited state. <span>An </span>excited-state<span> atom is an atom in which the total energy of the </span>electrons<span> can be lowered by transferring one or more </span>electrons<span> to different orbitals.</span>
Answer:
Theoretical yield is 10.0g of HF.
Explanation:
Theoretical yield is defined as the yield of a reaction assuming a 100%.
In the reaction:
SiF₄(s) + 2H₂O(l) → 4HF(aq) + SiO₂(s)
2 moles of water produce 4 moles of HF.
4.51g of H₂O are:
4.51g ₓ (1mol/18.02g) = 0.250moles of water. Moles of HF:
0.250moles H₂O ₓ (4mol HF/2mol H₂O) = 0.500mol HF
In grams:
0.500mol HF ₓ (20.01g / 1mol) = <em>10.0g of HF - theoretical yield-</em>
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I hope it helps!
Answer is "2 - C₂H₅OH".
Fermentation is a process which is used to produce energy from sugars (glucose, sucrose and fructose) in the absence of oxygen.
Fermentation with the glucose releases energy by producing carbon dioxide (CO₂) and ethanol (C₂H₅OH) as its byproducts.
The reaction is
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂ + energy