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IrinaVladis [17]
3 years ago
7

What gas is released when potassium permanganate is decomposed

Chemistry
1 answer:
Anna [14]3 years ago
6 0

Potassium permanganate will decompose into potassium manganate, manganese dioxide and oxygen gas: 2KMnO4 → K2MnO4 + MnO2 + O. When Potassium permanganate is heated it turns to Potassium manganate, manganese dioxide and oxygen gas

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Calculate the molar mass lead(ll) nitrate,Pb(NO3)2
SVETLANKA909090 [29]
Refer periodic table
Pb= 207.2
N=14
O= 16
207.2 \: + (14 \times 2) + (16 \times 6)
=331.2gmol
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4 years ago
Give 3 examples of solutions, suspensions and colloids..
Vlad [161]
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5 0
3 years ago
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Determine how many grams of N2 are produced from the reaction of 8.37 g of H2O2 and 5.29 g of N2H4.
Dmitriy789 [7]
N₂H₄  +  2H₂O₂    →   N₂  +  4H₂O

mol = mass ÷ molar mass

If mass of hydrazine (N₂H₄)  = 5.29 g 
then mol of hydrazine           = 5.29 g ÷ ((14 ×2) + (1 × 4))
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mole ratio of hydrazine to Nitogen is     1   :  1
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     then moles of nitrogen = 0.165 mol

Mass = mol × molar mass

Since mol of nitrogen (N₂)  = 0.165
then mass of hydrazine      = 0.165 × (14 × 2)
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3 years ago
Benzene is often produced as a side product during grignard reactions using phenylmagnesium bromide. how can its formation be ex
Alex_Xolod [135]

Benzene is produced as a side product when water react with phenyl magnesium bromide during Grignard reactions.

<h3>What is Grignard Reaction ? </h3>

The Grignard reaction  involves an R-Mg-X, a carbon chain bound to a magnesium halide, used to form alcohols  by attacking carbonyls such as in aldehydes or ketones.

Here R act as a nucleophile and Mg-X act as a electrophile. Instead of attacking carbonyl, which is  present in the reaction, the benzene ring will attack  water molecules present around, grabbing a H⁺ and pushing away MgBr .    

The required reaction is :

PhMgBr + H₂O → Ph-H + MgBrOH

Thus from the above conclusion we can say that it is always advised to use dry Grignard to avoid this reaction.

Learn more about the GRIGNARD REACTION here :

brainly.com/question/23971610

#SPJ4

4 0
1 year ago
What is meant by density​
VashaNatasha [74]

Answer:

The degree of compactness of a substance

5 0
3 years ago
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