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2 years ago

What is adhesion and thanks?

Chemistry

1 answer:

SVETLANKA909090 [29]2 years ago

6 0

adhesion refers to the tendency of unlike molecules to bond with one another

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Consider four different samples: aqueous LiF, molten LiF, aqueous AgF, and molten AgF. Current run through each sample produces

meriva

Answer:

Molten LiF forms solid lithium

Aqueous AgF forms solid silver

Aqueous LiF forms hydrogen gas.

Explanation:

Aqueous solution of $LiF$ has water molecule, there will be competing will be two competing cations for reduction, while $Li^{+}(aq)$ and $H^{+}(aq)$ .However the reduction potential of $H^{+}(aq)$ is more than that of the $Li^{+}(aq)$ . Hence, $H^{+}(aq)$ reduced to hydrogen gas.

Molten $LiF$ has only solid form of $LiF$ and $Li^{+}(aq)$ reduced to form $Li$ solid.

An aqueous form of $AgF$ contains water molecules.there will be competing will be two competing cations for reduction, while $Ag^{3+}(aq)$ and $H^{+}(aq)$ .However the reduction potential of $Ag^{3+}(aq)$ is more than that of the $H^{+}(aq)$ . Hence, $Ag^{3+}(aq)$ reduced to solid silver.

Therefore, Molten LiF forms solid lithium

Aqueous AgF forms solid silver

Aqueous LiF forms hydrogen gas.

6 0

3 years ago

An unknown substance has the composition of 77.87% C, 2.63% H and 55.62% O. The compound has a molar mass of 345.2 g/mole. What

mezya [45]

If we use 100 grams of compound:
m(C) = 0,7787 · 100 g = 77,87 g.
n(C) = 77,87 g ÷ 12 g/mol = 6,49 mol.
m(H) = 0,0263 · 100 g = 2,63 g.
n(H) = 2,63 g ÷ 1 g/mol = 2,63 mol.
m(O) = 0,5562 · 100 g = 55,62 g.
n(O) = 55,62 g ÷ 16 g/mol = 3,48 mol.
n(C) : n(H) : n(O) = 6,49 mol : 2,63 mol : 3,48 mol.
n(C) : n(H) : n(O) = 2,5 : 1 : 1,33.
From molecular mass only possible is C₁₂H₉O₁₂.

7 0

3 years ago

When 2 or more forces exerted on an object where their effect cancels each other and they do not cause a change in the object's

konstantin123 [22]

Answer:

am going to go ahead and say balanced

Explanation:

in the picture

4 0

3 years ago

BRAINLIEST IF CORRECT

Ipatiy [6.2K]

Answer:

The answer is the first three

Explanation:

I had this question and got it correct

8 0

2 years ago

Read 2 more answers

What is the frequency of radiation which has a wavelength of 7.00 x 10⁻⁵cm? In what region of the electromagnetic spectrum is th

Novosadov [1.4K]

Answer:Frequency (hz) is some sort of vibration occurs during a particular period of time as either in a sound waves or in an electromagnetic field. Given below an online frequency of light with wavelength calculator to convert from wavelength to hz. Wavelength (λ) is the distance between two waves of energy traveling from one point to another point.

Explanation:

6 0

2 years ago