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Deffense [45]
3 years ago
7

Which of the following is not true about bias help pls

Chemistry
1 answer:
Pavlova-9 [17]3 years ago
4 0
The second one, vocab and definition doesn't add up
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3 years ago
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Answer:

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5 0
2 years ago
The solubility product constant of pbcl2 is 1.7 × 10−5 . what is the maximum concentration of pb2+ that can be in ocean water th
Sunny_sXe [5.5K]
Answer is: the maximum concentration of Pb²⁺ is 6.8·10⁻³ M.
Chemical reaction 1: PbCl₂(s) → Pb²⁺(aq) + 2Cl⁻(aq).
Chemical reaction 2: NaCl(aq) → Na⁺(aq) + Cl⁻(aq).
Ksp(PbCl₂) = 1.7·10⁻⁵.
c(NaCl) = c(Cl⁻) = 0.0500 M.
Ksp(PbCl₂) = c(Pb²⁺) · c(Cl⁻)².
c(Pb²⁺) = Ksp(PbCl₂) ÷ c(Cl⁻)².
c(Pb²⁺) = 1.7·10⁻⁵ M³ ÷ (0.0500 M)².
c(Pb²⁺) = 0.000017 M³ ÷ 0.0025 M².
c(Pb²⁺) = 0.0068 M = 6.8·10⁻³ M.

3 0
3 years ago
A change in color indicates that what has occurred?
Alex

Answer:

it's an indicator that a chemical reaction occurred.

6 0
3 years ago
Although _________________ are clearly dangerous psychoactive chemicals-drugs-semantic fiction portrays them otherwise.
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5 0
3 years ago
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