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weqwewe [10]
3 years ago
6

What element has an atomic number of 20 and two valence electrons in its valence shell?

Chemistry
1 answer:
8090 [49]3 years ago
3 0
Calcium is the element
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The concentration of a dextrose solution prepared by diluting 14 ml of a 1.0 M dextrose solution to 25 ml using a 25 ml volumetric flask is 0.56M.

Concentration is defined as the number of moles of a solute present in the specific volume of a solution.

According to the dilution law, the degree of ionization increases on a dilution and it is inversely proportional to the square root of concentration. The degree of dissociation of an acid is directly proportional to the square root of a volume.

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