3 years ago

2CuS + 3O2 = 2CuO + 2SO2

Chemistry

1 answer:

Nata [24]3 years ago

4 0

I have no yuuuuu to say anything abt to

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Will give brain!!! Need images of structures of all alkanes and alkenes

skelet666 [1.2K]

Answer:

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Explanation:

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3 years ago

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Which of the following elements has the greatest atomic radius? Al S Si C

suter [353]

Answer:

The answer to your question is: Al, Si have the greatest and S, C have the smallest.

Explanation:

Atomic radius increases from right to left in the periodic table.

Atomic radius increases from the upper section to the lower section of the periodic table.

Order of the atomic radius from highest to lowest.

Al, Si, S and C

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3 years ago

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Soloha48 [4]

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Which of the following sample will have the greatest average speed at 355 K?. A. CH4. B. Ne. C. C2H4. D. Cl2

Amanda [17]

Answer:

The correct option is methane : $CH_4$ .

Explanation:

Average speed of the gas molecules id given by expression:

$v_{avg}=\sqrt{\frac{8kT}{\pi m}}$

k = Boltzmann cosnatnt

T = Temperature of the gas molecules = 355 K

m = molecular mass of the molecule

$v_{avg}\propto \sqrt{\frac{1}{m}}$

Molar mass of methane = 18 g/mol

Molar mass of neon = 20.18 g/mol

Molar mass of ethene = 28 g/mol

Molar mass of chlorine gas = 70 g/mol

Lower the value of molar mass of gas molecule higher will be the average speed.So, from the given options methane gas greatest average seed because it has lowest molecular mass

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Answer:

0.675

Explanation:

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