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3 years ago

What reason best explains why metals are shiny

2 answers:

8 0

Metals are shiny because of their electrons. These electrons produce light when they come in contact with light. I hope this helps.

Elanso [62]3 years ago

4 0

The shiny appearance of a metal is most closely related to the metal's highly mobile valence electrons. In metallic bonds, the mobile electrons surrounding the positive ions are called a(n) electron sea. As light strikes the surface of a metal, the electrons in the electron sea absorb and re-emit the light.
I hope this helps.

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What is it called when a gas is converted into a liquid

alex41 [277]

Your answer is probably
Vaporization point

3 0

2 years ago

Read 2 more answers

Find the pH of a 0.100 molar H2C6O6 solution with ka, where KA is equal 8.0×10–5

lubasha [3.4K]

The pH of the solution is 2.54.

Explanation:

pH is the measure of acidity of the solution and Ka is the dissociation constant. Dissociation constant is the measure of concentration of hydrogen ion donated to the solution.

The solution of C₆H₂O₆ will get dissociated as C₆HO₆ and H+ ions. So the molar concentration of 0.1 M is present at the initial stage. Lets consider that the concentration of hydrogen ion released as x and the same amount of the base ion will also be released.

So the dissociation constant Kₐ can be written as the ratio of concentration of products to the concentration of reactants. As the concentration of reactants is given as 0.1 M and the concentration of products is considered as x for both hydrogen and base ion. Then the

$K_{a}=\frac{[H^{+}][HB] }{[reactant]}$

[HB] is the concentration of base.

$8 * 10^{-5} =\frac{x^{2} }{0.1}\\\\\\x^{2} = 8 * 10^{-5}*0.1$

$x^{2} = 0.08 * 10^{-4}\\ \\x = 0.283*10^{-2}$

Then

$pH = - log [x] = - log [ 0.283 * 10^{-2}]\\ \\pH = 2 + 0.548 = 2.54$

So the pH of the solution is 2.54.

4 0

2 years ago

Will the electronegativity of tellurium be larger or smaller than that of antimony?

ddd [48]

Answer:

Tellurium has a higher electronegativity than antimony because it has one more proton which creates a stronger attraction between the protons and electrons.

Explanation:

Hope this helped! Stay safe and goodluck on what you're doing! ♥♥♥

7 0

2 years ago

Which lists the structures, in correct order, through which light passes when it enters the eye?

Mashutka [201]

Answer:

cornea, pupil, lens, vitreous humor

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3 years ago

A particle that makes up the basic unit of an element is called an __________.

AleksAgata [21]

I think it’s atoms because of google

3 0

3 years ago