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Elena L [17]
4 years ago
6

Acetaldehyde and butanoic acid must have the same

Chemistry
1 answer:
ANTONII [103]4 years ago
7 0

Answer:

dsvcsdc

Explanation:

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Is a hydrogel a smart polymer/stimuli-responsive polmer?​
Vadim26 [7]
Polymer scientists have been trying to mimic this behavior by creating so called smart polymers. ... One of the most important classes of stimuli-responsive polymers used for controlled drug delivery is crosslinked polymer networks, e.g., hydrogels and microgels.
Hopefully this helps if not I’ll try rewriting it
8 0
3 years ago
Read 2 more answers
If 7.6 moles of H2O are produced from the reaction how many moles of O2 were used?
elena-14-01-66 [18.8K]

Answer:

Number of moles of oxygen used=13.5moles

Explanation:

To know the number of moles of oxygen used, first calculate the molar mass of water.

H2O=(2*1)+(1*16)

=2+16

18g/mol of H2O

The moles of H2O is 7.6 moles

So first, find the molar mass of oxygen

O2=2*16

=32g/mol

Then, number of moles of oxygen is equal to molar mass of oxygen divide by the molar mass of water times the number of moles of water

No. moles of O2=[32g/mol]/[18g/mol] *7.6moles

Moles of O2=1.778*7.6moles

No.moles of O2=13.5 moles

Therefore, the number of moles of oxygen used was 13.5moles

7 0
3 years ago
Explain the difference between the movement of water molecules at room temperature and at 0 'C.​
Helga [31]

Answer:

at room temperature: -water is in liquid state bcecause of which molecules are freely moving

at 0°C:- it is freezing pointof water in this state water molecule can't move due to which there is no collision and chemical reaction will not take place

Explanation:

if i m right than tag me brilliant

8 0
3 years ago
Read 2 more answers
the melting point of trimethylamine is -11.7.2, while the melting point of propylamine is -83.0 Considering that both these mlec
Simora [160]

Answer:

Due to hydrogen bond in propylamine.

Explanation:

The boiling point or melting point are property of

a) size

b) the intermolecular force of interactions.

As we know that primary and secondary amines form intermoleclar hydrogen bonds, which increases the force of attractions between molecules increasing the boiling point of amines.

However in case of tertiary amines there is no hydrogen directly attached to electronegative nitrogen atoms, thus no possibility of formation of hydrogen bond hence low boiling points.

The structures are shown in the figure.

3 0
3 years ago
50.0 grams of KCl is dissolved in water to make a 4.00 L
xeze [42]

Answer:0.1677M

Explanation:

Molarity=moles/volume

Number of moles =mass/molar mass

Once you get the number of moles, you apply it to the molarity formula.

8 0
4 years ago
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