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Lynna [10]
3 years ago
12

Name the following Cr(SO4)2

Chemistry
1 answer:
inessss [21]3 years ago
3 0
Chromium sulfate.
Cr is chromium, and SO4 is sulfate.
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How many electrons are there in second principal energy<br> level(n=2) of a phosphorus atom?
salantis [7]

Answer:

8 electrons

Explanation:

Phosphorous is the element of group 15 and third period. The atomic number of chlorine is 15 and the symbol of the element is P.

The electronic configuration of the element phosphorus is:-

1s^22s^22p^63s^23p^3

Thus, from the electronic configuration shown above,

In n = 2, the total number of electrons are 8 which are present in 2s^22p^6

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3 years ago
30 grams FO2 to molecules
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0.55559458710417

Explanation:

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What best defines an extensive property of a substance? (4 points) A property that is observable A property that is measurable A
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For the following reaction, KcKc = 255 at 1000 KK.
bonufazy [111]

Answer :

The equilibrium concentration of CO is, 0.016 M

The equilibrium concentration of Cl₂ is, 0.034 M

The equilibrium concentration of COCl₂ is, 0.139 M

Explanation :

The given chemical reaction is:

                           CO(g)+Cl_2(g)\rightleftharpoons COCl_2(g)

Initial conc.      0.1550      0.173           0

At eqm.          (0.1550-x)  (0.173-x)         x

As we are given:

K_c=255

The expression for equilibrium constant is:

K_c=\frac{[COCl_2]}{[CO][Cl_2]}

Now put all the given values in this expression, we get:

255=\frac{(x)}{(0.1550-x)\times (0.173-x)}

x = 0.139 and x = 0.193

We are neglecting value of x = 0.193 because equilibrium concentration can not be more than initial concentration.

Thus, we are taking value of x = 0.139

The equilibrium concentration of CO = (0.1550-x) = (0.1550-0.139) = 0.016 M

The equilibrium concentration of Cl₂ = (0.173-x) = (0.173-0.139) = 0.034 M

The equilibrium concentration of COCl₂ = x = 0.139 M

5 0
3 years ago
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