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svlad2 [7]
3 years ago
12

The chief advantage of the metric system over other systems of measurement is that it ____.

Chemistry
2 answers:
kipiarov [429]3 years ago
8 0

Answer:

The correct answer is option B, that is, is in multiples of 10.

Explanation:

The metric system refers to an internationally acclaimed decimalized system of measurement. It is used globally, and it is the most usual or the only system of measures and weight in the places where it is adopted.  

As the metric system is a decimal system of measures and weight, it is easy to transform in between the units, for example, from grams to kilograms, or from millimeters to meters, basically by dividing or multiplying by 10, 100, 1000, and others. Usually, this is the case of moving the decimal point to the left from the right.  

OlgaM077 [116]3 years ago
7 0

The chief advantage of the metric system over other systems of measurement is that it B. is in multiples of 10.

This can be seen in the picture below that shows the prefixes of the metric system.


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In k4[fe(cn)6], how many 3d electrons does the iron atom have?
san4es73 [151]
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Sum of the oxidation numbers of each element  = Charge of the compound
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Hence, oxidation number of Fe in [Fe(CN)₆]⁴⁻ is +2. 

Now Fe has the atomic number as 26. Hence, number of electrons in Fe at ground state is 26. 
Electron configuration = 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶ 4s² = [Ar] 3d⁶ 4s²

When making Fe²⁺, Fe releases 2 electrons. Hence, the number of electrons in Fe²⁺ is 26 - 2 = 24.
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Hence, the number of 3d electrons of Fe in K₄[Fe(CN)₆] compound is 6.
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