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kupik [55]
3 years ago
14

What are valance electrons

Chemistry
2 answers:
Leni [432]3 years ago
7 0

valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

polet [3.4K]3 years ago
7 0
A valence electron is an electron of an atom, located in the outer most shell (called a valence shell) of the atom, which can be transferred to or shared with another atom.

hope this helps!
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Why do hotspots appear to move in relation to tectonic plates?
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Compounds are made up of elements that exist in a fixed proportion.  These elements are composed of atoms.  Now, the atom has subatomic particles (proton, neutron and electrons), however, these particles lack the ability to take part in chemical reactions by themselves; the smallest unit of a compound that can take part in a chemical reaction, therefore, is an ATOM. 

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URGENT !! A substance has 55.80% carbon, 7.04% Hydrogen, and 37.16% Oxygen. What is it's empirical and molecular formula if it h
Ede4ka [16]
<h3><u>Answer;</u></h3>

Empirical formula = C₂H₃O

Molecular formula = C₁₄H₂₁O₇

<h3><u>Explanation</u>;</h3>

Empirical formula

Moles of;

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Hydrogen = 7.04/ 1 = 7.04 moles

Oxygen  = 37.16/ 16 = 2.3225 moles

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43n = 301.35

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Molecular formula = (C2H3O)7

                             <u> = C₁₄H₂₁O₇</u>

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Which branch of chemistry studies the composition of substances
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