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GenaCL600 [577]
2 years ago
10

PLEASE HELP ASAP IT'S TIMEDDDDD​

Chemistry
1 answer:
AfilCa [17]2 years ago
5 0
I’m pretty sure that the answer is B! Hope this helps! :3c
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Scientists tell people which issues are the most important describes an important role scientists have in society.

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8 0
1 year ago
How many cups of beer are in a keg?
Alinara [238K]
The answer is roughly 165 cups of beer.
5 0
3 years ago
Is the formation of acid rain an exothermic or endothermic reaction?
Monica [59]
It is an exothermic reaction
4 0
3 years ago
The Ksp of yttrium iodate, Y(IO3)3 , is 1.12×10−10 . Calculate the molar solubility, s , of this compound.
torisob [31]

Answer:

1.427x10^-3mol per L

Explanation:

Y(IO_{3} )_{3} ---- Y^{3+} +IO_{3} ^{3-}

I could use ⇌ in the math editor so I used ----

from the question each mole of Y(IO3)3 is dissolved  and this is giving us a mole of Y3+ and a mole of IO3^3-

Ksp = [Y^3+][IO3-]^3

So that,

1.12x10^-10 = [S][3S]^3

such that

1.12x10^-10 = 27S^4

the value of s is 0.001427mol per L

= 1.427x10^-3mol per L

so in conclusion

the molar solubility is therefore 1.427x10^-3mol per L

3 0
3 years ago
The radius of a hydrogen atom is 37 pm and its mass is 1.67 × 10-24 g. What is the density of the atom in grams per cubic centim
RoseWind [281]

Answer:

V = 4/3 * 3.1416 * (37x10-10)3

V = 2.12x10-25 cm3

d = m/V

d = 1.67x10-24 / 2.12x10-25 = 7.87 g/cm3

The difference in temperature, let's convert F to ºC:

ºC = -80-32/1.8 = -62.22 ºC

dT = -92.6 + 62.2 = -30.4 ºC

4 0
3 years ago
Read 2 more answers
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