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solong [7]
2 years ago
15

Manganese atom has 30 neutrons and atomic number 25

Chemistry
2 answers:
marysya [2.9K]2 years ago
7 0

Answer:

the most common oxidation no.of manganese is +2 +3 +4 +6 +7

Zanzabum2 years ago
6 0
+2+3+4+5+6+7

Mostly the anwser
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Describe the steps used to create Lewis dot structures to represent covalent bonds.
antiseptic1488 [7]
1)Identify the atoms that are participating in a covalent bond.
2)Draw each atom by using its element symbol. The number of valence electrons is shown by placing up to two dots on each side of the element symbol, with each dot representing a single valence electron.
3)Predict the number of covalent bonds each atom will make using the octet rule.
4)Draw the bonding atoms next to each other, showing a single covalent bond as either a pair of dots or a line representing a shared valence electron pair. If the molecule forms a double or triple bond, use two or three lines to represent the shared electron pairs, respectively.

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A square painting has a length of 62 cm.<br><br> What is the area of the painting?<br><br> cm²
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Answer:3844 cm^2

Explanation:

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False, rivers tend to flow from high ground to low ground
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2 years ago
At a certain temperature the value of the equilibrium constant, Kc, is 1.27 for the reaction. 2As (s) + 3H2 (g) ⇌ 2AsH3 (g) What
Bess [88]

Answer:

0.887

Explanation:

Hello,

In this case, the law of mass action for the first reaction turns out:

Kc=\frac{[AsH_3]^2}{[As]^2[H_2] ^3}=1.27

Now, for the second reaction is:

Kc=\frac{[As][H_2] ^{3/2}}{[AsH_3]}

Therefore, by applying square root for the first reaction, one obtains:

\sqrt{Kc} =\sqrt{\frac{[AsH_3]^2}{[As]^2[H_2] ^3}} =\sqrt{1.27}

\frac{\sqrt{[AsH_3]^2} }{\sqrt{[As]^2} \sqrt{[H_2] ^3} } =\sqrt{1.27}

\sqrt{1.27}=\frac{[AsH_3]}{[As][H_2] ^{3/2}}

Finally, since Kc is asked for the inverse reaction, one modifies the previous equation as:

Kc'=\frac{1}{\sqrt{1.27} }=\frac{[As][H_2] ^{3/2}}{[AsH_3]}=0.887

Best regards.

8 0
3 years ago
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