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Lyrx [107]
3 years ago
13

What is found in the outer region of the electron cloud

Chemistry
1 answer:
Alex Ar [27]3 years ago
4 0
Valence electrons is the answer to ur question
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Why is boiling water a physical change
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Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O).

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The black, granular material that fills a dry cell in a common flashlight (between the carbon rod and the zinc shell) is mangane
mestny [16]

Answer: c. +4

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Mn:25:1s^22s^22p^63s^23p^64s^23d^{5}

Mn^{4+}:21:1s^22s^22p^63s^23p^63d^1

O:8:1s^22s^22p^4

O^{2-}:10:1s^22s^22p^6

Here manganese is having an oxidation state of +4 called as  cation and oxygen forms an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged to give Mn_2O_4 which written in simplest whole number ratios to give neutral MnO_2

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3 years ago
The type of chemical reaction represented by the following equation is...
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i believe the answer is a

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Automobile air bags use the decomposition of sodium azide as their sources of gas for rapid inflation, represented in the reacti
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