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PolarNik [594]
3 years ago
9

(1) How did Democritus characterize atoms?

Chemistry
1 answer:
bija089 [108]3 years ago
3 0
1. Democritus characterized atoms as indestructible and indivisible.
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Would the ph at the equivalence point be acidic, basic, or neutral for each given titration?.
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Answer:

At the equivalence point, equal amounts of H+ and OH– ions will combine to form H2O, resulting in a pH of 7.0 (neutral). The pH at the equivalence point for this titration will always be 7.0, note that this is true only for titrations of strong acid with strong base.

Explanation:

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2 years ago
A student puts a glass of water in the freezer. Later, he notices ice forming on the surface of the water. Which property of wat
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HELP ASAP PLEASE<br> Use the word Precision in a sentence relating to chemistry!
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I needed to use good precision in my measurement for my chemistry lab

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3 years ago
What is the wavelength of a light of frequency 6.42 x 1014 Hz?
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8 0
3 years ago
The maximum amount of nickel(II) cyanide that will dissolve in a 0.220 M nickel(II) nitrate solution is...?
sweet [91]

Answer : The maximum amount of nickel(II) cyanide is 5.84\times 10^{-12}M

Explanation :

The solubility equilibrium reaction will be:

                       Ni(CN)_2\rightleftharpoons Ni^{2+}+2CN^-

Initial conc.                        0.220       0

At eqm.                             (0.220+s)   2s

The expression for solubility constant for this reaction will be,

K_{sp}=[Ni^{2+}][CN^-]^2

Now put all the given values in this expression, we get:

3.0\times 10^{-23}=(0.220+s)\times (2s)^2

s=5.84\times 10^{-12}M

Therefore, the maximum amount of nickel(II) cyanide is 5.84\times 10^{-12}M

7 0
3 years ago
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