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natulia [17]
3 years ago
12

The oxidation state for carbon element in CO2 is:

Chemistry
1 answer:
Degger [83]3 years ago
8 0

Answer:

Option A,+4

Explanation:

Oxidation state of any element is the sum of oxidation of all elements =0

Here we need to find oxidation no of carbon and consider oxidation no of carbon as X and oxidation number of oxygen is -2

Then X+2(-2)=0 (since 2 oxygen atoms are there in CO2 )

X-4=0

X=+4

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An aqueous solution 10 g of an optically pure substance diluted to 500ml with water and placed in a polarimeter tube 20 cm long.
Gennadij [26K]

Explanation:

Formula to calculate specific rotation is as follows.

        Specific rotation ([\alpha]) = \frac{\alpha}{c} \times l

where,    \alpha = observed rotation

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It is given that,

             \alpha = -6.16^{o}    

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Therefore, calculate the specific rotation as follows.

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3 years ago
During the cold winter months the surface Of a lake becomes hard Ice this is due to which change of state
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Explanation:

This change in state when surface of a lake changes to hard ice is known as freezing.

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Learn more:

Phase change brainly.com/question/1875234

#learnwithBrainly

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