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Citrus2011 [14]
3 years ago
7

Substances which will glow in the dark after being exposed to sunlight are called:

Chemistry
2 answers:
DiKsa [7]3 years ago
7 0

Answer:

phosphorescent substances.

Explanation:

nordsb [41]3 years ago
6 0
It  is called phosphorescent substances. 
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What is the hydrogen ion concentration, [H+], of a solution with a pH of 5.43?
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Answer: 3.7 x10−6 Mole per dm^3

Explanation:

pH is the negative logarithm of hydrogen ion concentration in a solution.

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(H+) = Antilog (-5.43)

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Then, 0.000003715 in standard form becomes 3.7 x10−6 M

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