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2 years ago

Why we are advice to use fossil fuel only when absolutely necessary?

Chemistry

1 answer:

trasher [3.6K]2 years ago

4 0

Answer:

Hello there! For some reason Brainly detects my answers as containing swear words in them when they do not. Hence, the answer is going to be in the comments. Enjoy!

Explanation:

Hope this helped!

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Citrus2011 [14]

Answer:

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Explanation:

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2 years ago

Read 2 more answers

For the Zn - Cu^2+ voltaic cell Zn(s) + Cu^2+(aq, 1M) + Cu(s) E degree _cell = 1.10 V Given that the standard reduction potentia

Fittoniya [83]

Answer : The value of $E^o_{(Cu^{2+}/Cu)}$ is, 0.34 V

Explanation :

Here, copper will undergo reduction reaction will get reduced. Zinc will undergo oxidation reaction and will get oxidized.

The oxidation-reduction half cell reaction will be,

Oxidation half reaction: $Zn\rightarrow Zn^{2+}+2e^-$

Reduction half reaction: $Cu^{2+}+2e^-\rightarrow Cu$

Oxidation reaction occurs at anode and reduction reaction occurs at cathode. That means, gold shows reduction and occurs at cathode and chromium shows oxidation and occurs at anode.

The overall balanced equation of the cell is,

$Zn+Cu^{2+}\rightarrow Zn^{2+}+Cu$

To calculate the $E^o_{(Cu^{2+}/Cu)}$ of the reaction, we use the equation:

$E^o_{cell}=E^o_{cathode}-E^o_{anode}$

$E^o_{cell}=E^o_{(Cu^{2+}/Cu)}-E^o_{(Zn^{2+}/Zn)}$

Putting values in above equation, we get:

$1.10V=E^o_{(Cu^{2+}/Cu)}-(-0.76V)$

$E^o_{(Cu^{2+}/Cu)}=0.34V$

Hence, the value of $E^o_{(Cu^{2+}/Cu)}$ is, 0.34 V

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2 years ago

What is rate of reaction? Discuss in brief slow and fast reactions.<br>

Sindrei [870]

The reaction rate or rate of reaction is the speed at which a chemical reaction takes place, defined as proportional to the increase in the concentration of a product per unit time and to the decrease in the concentration of a reactant per unit time.

Reactions that happen quickly have a high rate of reaction. For example, the chemical weathering of rocks is a very slow reaction: it has a low rate of reaction. Explosions are very fast reactions: they have a high rate of reaction. Rate of reaction is an example of a compound measure.

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2 years ago

All the elements in the same period have the same_______

gogolik [260]

Answer:

all the elements in the same period have the same valence electrons.

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2 years ago

Pls help this my final 20 points!!!! Be right

Anastaziya [24]

Answer:

I think it's B

Explanation:

I hope it helps

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1 year ago

Why we are advice to use fossil fuel only when absolutely necessary?​

Why we are advice to use fossil fuel only when absolutely necessary?