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Tpy6a [65]
3 years ago
15

How does the radius of the central atom affect the boiling points of Group 16 halides?

Chemistry
1 answer:
Taya2010 [7]3 years ago
6 0
I don’t really know but hope you figure it out
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Student perfotms a Benedict's test on an unknown substance. He adds reagent(the chemical required to make a color change), and n
elixir [45]

Answer:

Reducing sugars are absent

Explanation:

Benedict's solution is an substance used in testing sugars. It is mixture of sodium carbonate, sodium citrate and copper(II) sulfate pentahydrate. It can be used instead of Fehling's solution in testing for the presence of reducing sugars.

Reducing sugars contain the -CHO group. If there is no colour change after the addition of Benedict's solution, then we can conclude that reducing sugars are absent.

7 0
3 years ago
Four glass tanks contain water. In which tank is the pressure of the water on the base greatest.
Svetllana [295]
If it’s a multiple choice question A is the correct answer

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7 0
2 years ago
List the compounds in decreasing boiling point order. ch3ch2ch3 ar ch3cn
leva [86]

The boiling point depends on the strength of the intermolecular forces holding the molecules together. Greater the force, higher is the boiling point.

The intermolecular force increases in the order shown below:

ion-ion > H-bonding > dipole-dipole > London dispersion

CH3CN is a polar molecule with strong dipole-dipole forces

CH3CH2CH3 is non-polar held by london dispersion

Ar exist as a gas. It will have a lowest boiling point

Thus the order of decreasing b.pt is:

CH3CN > CH3CH2CH3 > Ar

6 0
3 years ago
What is the percentage composition of each element in Fe(OH)3
Bezzdna [24]

Answer:

Fe =52.2%, O = 44.9%, H = 2.81%

Explanation:

Percentage composition is also known as percentage by mass.

First, find the Mr of the compound.

Mr of Fe(OH)₃ = 55.8 + (16 × 3) + (1 × 3)

= 106.8

Now Divide the mass of the element, as per the compound, by the Mr of the compound found and times that by 100.

% composition of Fe = \frac{55.8}{106.8} × 100 = 52.2%

% composition of O = \frac{16*3}{106.8} × 100 = 44.9%

[There are 3 oxygen atoms in the compound Fe(OH)₃, so we will multiply the atomic mass of oxygen with the number of atoms in the compound: 16×3 ]

% composition of H = \frac{1*3}{106.8} × 100 = 2.81%

[There are 3 hydrogen atoms in the compound Fe(OH)₃, so we will multiply the atomic mass of hydrogen with the number of atoms in the compound: 1×3 ]

3 0
2 years ago
What tools did you use to collect your data? 1.20 Lab: Earth's Surface Processes.
Lyrx [107]

Answer:

I don't know because I don't know about chemistry

6 0
2 years ago
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