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3 years ago

How the glass is made up off?

Chemistry

1 answer:

Wittaler [7]3 years ago

3 0

Answer:

hope this would be helpful for you

Explanation:

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Are there molecules of sodium chloride within a sodium chloride crystal?

alukav5142 [94]

No, within a crystal like structure or ionic lattice of sodium chloride, there are ions of Na and Cl. Na+ and Cl- respectively that are attracted to each other due to their opposite charges. Many of these ions form a crystal structure.

6 0

4 years ago

Convert 100mL to L. Show your work to receive full credit.

Ilya [14]

Answer:

100 ml = 0.1 L

I divided 100 by 1000 because 1000ml = 1L

3 0

3 years ago

Which factor explains why coal dust in an enclosed space is more explosive than coal dust blown outdoors into an open space ? A.

leonid [27]

Answer:

Option C:- Concentration

Explanation:

Coal dust explosion can cause lots of damage. To avoid

this, the amount or concentration of coal dust per unit

volume or MEC is measured with the various conditions

of coal storage such as the particle size, moisture of coal,

degree of dispersion and delayed time of ignition source

to prevent the coal dust explosion which aims to study

and design the explosion safety measures for coal dust

handing installations. The results present that moisture

content in coal has more effect on dust explosion. The

smaller size of particle, low moisture in coal and high

coal dust dispersion can increase the possibility or risk of

dust explosion.

6 0

4 years ago

Calculate the acid dissociation constant of a weak monoprotic acid if a 0.5M solution of this acid gives a hydrogen-ion concentr

RUDIKE [14]

Let the acid be HA.
The chemical formula for this acid will be the following:

$HA \rightleftharpoons H^{+}+A^{-}$

The formula for the acid dissociation constant will be the following:

 $K_a= \dfrac{[H^+][A^-]}{[HA]}$

We know [H+]=0.0001 (it's given).
However, we must find [A-] and [HA] in order to solve for the constant.

We find that [A-]=[H+] by using a electroneutrality equation.
Also, we can create a concentration equation to find [HA].

 $0.5M=[A^-]+[HA]$
$[HA]=0.5M-[A^-]$

Now, we can find the acid dissociation constant.

 $K_a= \dfrac{[H^+][A^-]}{0.5M-[A^-]}$

$= \dfrac{0.0001*0.0001}{0.5-0.0001} = 2.0*10^{-8}$

4 0

3 years ago

Ok So there is this boy that I like. He is short, he has curly hair, and freckles. He is my brothers best friend. But I don't th

Temka [501]

Answer:

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Explanation:

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6 0

3 years ago