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Licemer1 [7]
3 years ago
5

NEED HELP ASAP!!! ( WILL MARK BRAINLIST)

Chemistry
2 answers:
sattari [20]3 years ago
8 0
The area will experience a short-term economic boom and the area will experience a downturn once the mineral is out
kirza4 [7]3 years ago
7 0

Answer:

The first and last choice

Hope this helps! Plz mark brainliest

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How many moles is 130g of CoCl2
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Find the value of the solubility product ksp for a saturated solution of mercury bromide, hgbr2, using the solubility of mercury
kondaur [170]
When the reaction equation is:

HgBr2(s) ↔ Hg2+(aq)   +   2Br-(aq)

So Ksp expression = [Hg2+] [Br-]^2

assume the solubility S = X = 2.66 x 10^-7 M 

and from the reaction equation :

we can see that [Hg2+] = X

and the [Br-] = 2 X

so by substitution in Ksp formula will can get the Ksp value:

∴ Ksp = X * (2X)^2

       = 2.66 x 10^-7 * (2*2.66 x 10^-7)^2

       = 7.53 x 10^-20
7 0
3 years ago
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