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valkas [14]
3 years ago
12

What property of an element does the group number identify in a numbering system that uses "A" and "B"?

Chemistry
2 answers:
VMariaS [17]3 years ago
8 0
<span>The number of valence electrons. :) have a good day </span>
tino4ka555 [31]3 years ago
5 0

Answer: the number of valence electrons

Explanation: apex

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A sample of mercury has a mass of 607.0 lb and a volume of 0.717 ft. What is its specific gravity? Number SG= What are the units
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Answer:

Specific gravity of mercury is 13.56 and it is an unit-less quantity.

Explanation:

Mass of the mercury = m = 607.0 lb = 275330.344 g

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Density of the mercury = d=\frac{m}{v}=\frac{275330.344  g}{20,303.18 mL}

d = 13.56 g/mL

Specific gravity of substance = Density of substance ÷ Density of water

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Specific gravity of mercury :

S.G=\frac{13.56 g/mL}{1 g/mL}=13.56 (unit-less quantity)

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