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defon
3 years ago
13

when an individual goes without eating for a day, his or her blood sugar remains about the same throughout the day this relative

ly constant condition is maintained by
Chemistry
1 answer:
Len [333]3 years ago
5 0
The answer is homeostatic control
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What type of forces must the polar water molecules break to dissolve ethanol, C2H5OH?
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Answer:

Option B

Covalent Bonding

Explanation:

Covalent bonds in C2H5OH are formed between the carbon and hydrogen atoms, where there are shared electron pairs.

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Which element would have the lowest electronegativity? (1 point)
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The element which would have the lowest electronegativity is: an element with a small number of valence electrons and a large atomic radius.

Atomic radii can be defined as a measure of the size (distance) of the atom of a chemical element such as hydrogen, oxygen, carbon, nitrogen etc, typically from the nucleus to the valence electrons. The atomic radius of a chemical element decreases across the periodic table, typically from alkali metals (group one elements such as hydrogen, lithium and sodium) to noble gases (group eight elements such as argon, helium and neon). Also, the atomic radius of a chemical element increases down each group of the periodic table, typically from top to bottom (column).

Generally, atoms with relatively large atomic radii tend to have a low electronegativity, ionization energy and a low electron affinity.

Valence electrons can be defined as the number of electrons present in the outermost shell of an atom. Thus, number of valence electrons is typically used to determine the chemical properties of elements such as electronegativity.  

Electronegativity can be defined as the ability or tendency of the atom of an chemical element to attract any shared pair of electrons.

In conclusion, a chemical element that has small number of valence electrons and a large atomic radius would have the lowest electronegativity.

Find more information: brainly.com/question/24370190

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3 years ago
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https://www.khanacademy.org/science/chemistry/electronic-structure-of-atoms/history-of-atomic-structure/a/discovery-of-the-electron-and-nucleus

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there are 6 significant values

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