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4 years ago

Copper is an example of a(n)

Chemistry

2 answers:

expeople1 [14]4 years ago

7 0

copper is not a stone, copper is not a consumption resource, and copper is not renewable, that means that :

d. nonrenewable resource

Explanation:

A nonrenewable source is a source of economic value that cannot be immediately displaced by natural means on a level equal to its destruction. Most fossil fuels, such as oil, natural gas, and coal are estimated nonrenewable resources in that their use is not sustainable because their production takes billions of years.

satela [25.4K]4 years ago

5 0

copper is not a stone, copper is not a consumption resource, and copper is not renewable, that means that

d. nonrenewable resource

is the answer

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The elementary gas-phase reaction2A → Bis carried out in a constant-volume batch reactor where 50% conversion is achieved in 1 h

Zina [86]

Answer:

$V=5000dm^3$

Explanation:

Hello,

In this case, for the STR reactor carrying out this chemical reaction, the material balance is:

$\frac{dC_A}{dt}=r_A\\\\\frac{dC_A}{dt}=-kC_A^2$

Thus, with the given information we compute the rate constant as follows:

$C_A_0 \frac{dX_A}{dt}=kC_A_0^2(1-X_A)^2\\\\\int\limits^{0.5}_0 {\frac{dX_A}{(1-X_A)^2} } \,=kC_A_0t\\\\\frac{0.5}{1-0.5}=k*0.2\frac{mol}{dm^3}*1h\\ \\k=\frac{1}{(0.2\frac{mol}{dm^3})*1h} \\\\k=5\frac{dm^3}{mol*h}$

Now, for the CSTR we have the following design equation in terms of conversion for finding the volume:

$V=\frac{F_A_0*X_A}{-r_A}\\\\V=\frac{F_A_0*X_A}{k*C_A_0^2(1-X_A)^2}$

Therefore, it turns out:

$V=\frac{500\frac{mol}{h} *0.5}{5\frac{dm^3}{mol*h} *(0.2\frac{mol}{dm^3} )^2(1-0.5)^2}\\\\V=5000dm^3$

Best regards.

7 0

3 years ago

Are metallic bonds are found in compounds

Ratling [72]

Answer:

Explanation:

Yes :)

Mark brainliest please

5 0

3 years ago

Read 2 more answers

Explain why the catalyst is used as a very fine powder and larger pieces of iron are not used.

Allushta [10]

Answer:

<h2><u>Reason:</u></h2>

Catalyst is used as a very fine powder and larger pieces of iron are not used. This is because the surface area of catalyst needs to be large so that more of the surface is exposed to the substrate and more of the substrate is catalyzed.

<h2><u>Important Info:</u></h2>

=> Larger Pieces of Iron has a smaller surface area than the fine particles.

=> Larger the surface area of catalysts/enzymes , more will be the reaction rate and vice versa.

Hope this helped!

<h2>~AnonymousHelper1807</h2>

7 0

3 years ago

Intermolecular forces allow which of the following substances to be the least fluid?

slava [35]

Out of the options, glass is the least fluid. The proof of this also lies in the fact that glass is the most difficult to melt out of all of the mentioned substances, and melting point gives us a rough estimate of the strength of intermolecular forces.

3 0

4 years ago

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Differentiate between mass, volume, and density. Explain why only changing the shape of an object would have no effect on its de

Anni [7]

Mass is how much matter is in an object. Volume is how much space an object occupies. Density is the amount of mass in a volume.

Have a nice day, brainliest would be fantastic

3 0

3 years ago