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3 years ago

Witch statement about greenhouse gases is false

Chemistry

1 answer:

erma4kov [3.2K]3 years ago

7 0

Answer:

???

Explanation:

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How can you convert diamond into graphite ?

Setler79 [48]

Answer:

➢There are different ways to trigger the conversion of diamond to graphite, for instance by simply heating the diamond under exclusion of oxygen or even with an aimed mechanical stroke.

Explanation:

hope it will help you have a great day bye and Mark brainlist if the answer is correct

$kai6417$

#carry on learning

4 0

3 years ago

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Consider the following reaction at 298.15 K: Co(s)+Fe2+(aq,1.47 M)⟶Co2+(aq,0.33 M)+Fe(s) If the standard reduction potential for

fgiga [73]

Answer:

The correct answer is 0.186 V

Explanation:

The two hemirreactions are:

Reduction: Fe²⁺ + 2 e- → Fe(s)

Oxidation : Co(s) → Co²⁺ + 2 e-

Thus, we calculate the standard cell potential (Eº) from the difference between the reduction potentials of cobalt and iron, respectively, as follows:

Eº = Eº(Fe²⁺/Fe(s)) - Eº(Co²⁺/Co(s)) = -0.28 V - (-0.447 V) = 0.167 V

Then, we use the Nernst equation to calculate the cell potential (E) at 298.15 K:

E= Eº - (0.0592 V/n) x log Q

Where:

n: number of electrons that are transferred in the reaction. In this case, n= 2.

Q: ratio between the concentrations of products over reactants, calculated as follows:

$Q = \frac{ [Co^{2+} ]}{[Fe^{2+} ]} = \frac{0.33 M}{1.47 M} = 0.2244$

Finally, we introduce Eº= 0.167 V, n= 2, Q=0.2244, to obtain E:

E= 0.167 V - (0.0592 V/2) x log (0.2244) = 0.186 V

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4 years ago

How to tell if a reaction is double bond or single

Alenkasestr [34]

Answer:

Single replacement is a reaction in which one element reacts with another compund to form another compound and another element.

planation:

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3 years ago

Describe the stages of gradual metamorphosis

goblinko [34]

Answer:

Egg, Nymph, and Adult.

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4 years ago

Which choice is not an example of a molecule Mn O3 KOH H2S

Vlad [161]

Answer:

The correct answer is Mn

Explanation:

I hope you get the question right because I did!

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4 years ago

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