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Lorico [155]
4 years ago
6

When the pentaacetate anomer obtained in this reaction is heated with zncl2 and acetic anhydride?

Chemistry
1 answer:
irinina [24]4 years ago
8 0

Are you referring to this question? 

<span>When the pentaacetate anomer is heated with ZnCl2 and acetic anhydride, it is converted into the other anomer. Explain why it occurs.</span>

If so, then the answer would be:

Glucose Pentaacetate is prepared through the acetylation of glucose with acetic anhydride.

Alpha-anomer is produced when acidic catalyst is present like zinc chloride. On the other hand, beta-anomer is formed when a basic catalyst is present, like sodium acetate.

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Decaying plants and animals are important to an ecosystem because they
Leviafan [203]

Answer:

The option D is correct answer.

7 0
3 years ago
What will happen to the following equilibrium if Cl2
REY [17]

The following equilibrium will shift in the direction of the product:

<h3>Further explanation</h3>

Given

Reaction

4HCl + O₂ → 2H₂O + 2Cl₂

Cl₂  was removed

Required

Equilibrium changes

Solution

Reaction = - action

adding the products ⇒ Shifts in the direction of the reactants

reducing the products ⇒Shifts in the direction of the products

Cl₂ as a product, so if Cl₂ is taken or reduced, the reaction will try to maintain system equilibrium by moving to the right (product formation) ⇒ Shift in the direction of the product:

7 0
3 years ago
A color-coded periodic table. Which elements are metals? Check all that apply. rhenium (Re) boron (B) lithium (Li) krypton (Kr)
AlekseyPX

Answer:

re) li) hg)

Explanation:

6 0
4 years ago
Read 2 more answers
Choose all that apply. Solids, liquids, and gases can be distinguished by their:molecular weight shape temperature kinetic energ
vesna_86 [32]
So, we have:
- molecular weight
- shape
- temperature
- kinetic energy
- mass
- density

Let's rule out the different options.
- molecular weight: Say you have a molecule of H2O. H2O can be a solid, liquid, or gas, but its molecular weight never changes throughout (It's still the same molecule, no matter what phase it is in). We can rule this out.

- shape: Let's pretend we have three identical closed containers, and we fill each one halfway with water, blocks of ice cubes, and water vapor. In the container with water, you will see that the water takes the shape of the container, but doesn't fill the entire container up. The ice cubes will stay ice cubes, assuming they don't melt, so they don't take the shape of the container. The vapor will fill up the entire container. Since all three are different, I would say yes, this could be a distinguishable feature.

- temperature: In general, I would say no, because every element/molecule has different boiling points and different vaporization points. So if you have a liquid at 5°C, you could also have a different element in solid form at 5°C. But if you're comparing a single type of molecule, it would have a boiling point and a vaporization point, so you <em>would</em> be able to tell between them.

- kinetic energy: Kinetic energy refers to how much movement there is in respect to each molecule. In solids, the molecules are packed tightly together and can't move very much, so they have lower kinetic energy. In liquids, they are less packed, but still restricted. And in gases, they can fly freely, so they will have much more kinetic energy than liquids or solids. This one's a yes.

- mass: No matter what form, there are still the same amount of molecules, and each molecule has the same mass as before. It won't change.

- density: Since the molecules are more spread out in gases, it will be less dense. Liquids will be more dense, and solids will have the greatest density. So, yes.

Conclusion: shape, kinetic energy, density, (and temperature if it's talking about a single type of molecule)
5 0
3 years ago
I need help fast please <br> What is ATP?
Jobisdone [24]

Answer:

Adenosine triphosphate is a complex organic chemical that provides energy to drive many processes in living cells, e.g. muscle contraction, nerve impulse propagation, and chemical synthesis. Found in all forms of life, ATP is often referred to as the "molecular unit of currency" of intracellular energy transfer. Wikipedia

Formula: C10H16N5O13P3

Molar mass: 507.18 g/mol

IUPAC ID: [[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] phosphono hydrogen phosphate

Acidity (pKa): 6.5

Soluble in: Water

UV-vis (λmax): 259 nm

Explanation:

8 0
4 years ago
Read 2 more answers
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