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SVEN [57.7K]
3 years ago
11

The jet stream is one of the key winds that moves air masses in which direction does the jet stream in the United

Chemistry
2 answers:
Blababa [14]3 years ago
4 0

Answer:

west to east

Explanation:

Yuri [45]3 years ago
3 0

Answer: West to East

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The equilibrium constant, Kc, for the following
umka21 [38]

Answer:

2CH2Cl2(g) Doublearrow CH4(g) + CCl4(g)

0.205 moles of CH2Cl2 is introduced. Let by the time an equilibrium is reached x moles each of CH4 and CCl4 are formed => remaining moles of CH2Cl2 are 0.205-x

i.e at equilibrium the concentration on CH2Cl2 is (0.205-2x) mol/L, CH4 is x mol/L, CCl4 is x mol/L

Now the equilibrium constant equation : K = [CH4][CCl4]/[CH2Cl2]^2 ([.] - stands for concentration of the term inside the bracket)

10.5 = x*x/(0.205-2x)^2

=> 10.5(4x^2-0.82x+0.042) = x^2

=>42x^2-8.61x+0.441=x^2

=>41x^2-8.61x+0.441 = 0

This is a Quadratic in x, solving for the roots, we get x = 0.0886 , x = 0.121

The second solution for x will lead 0.205-2x to become negative, so is an infeasible solution.

Therefore equilibrium concentrations of the products and reactants correspond to x=0.0886 and they are , [CH2Cl2] = 0.205-2*0.0886 =0.0278 mol/L , [CH4] = 0.0886 mol/L , [CCl4] = 0.0886 mol/L

4 0
2 years ago
If the internal energy of the products of a reaction is lower than the internal energy of the reactants, what is the sign of δe
Pachacha [2.7K]
It has a positive sign
4 0
3 years ago
Help, please I don't understand what I have to do
8_murik_8 [283]

Answer:

Is there a picture To go with this?

Explanation:

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2 years ago
Which element was first discovered in space before it was discovered on Earth?
wlad13 [49]

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carbon

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7 0
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You are given an aqueous solution and are asked to analyze it for the presence (or absence) of Ag+(aq), Ca2+(aq), and/or Hg2+(aq
pantera1 [17]

Answer:

(c) only Ca2+(aq) and Hg2+(aq)

Explanation:

  • In the first step, hydrochloric acid (HCl) is added to the solution. In this case the equilibrium that could take place is:

Ag⁺(aq) + Cl⁻(aq) ↔ AgCl(s)

But no precipitate was formed, so Ag⁺(aq) is absent.

  • By adding H₂SO₄(aq) the next equilibrium that could take place is:

Ca⁺²(aq) + SO₄⁻²(aq)  ↔ CaSO₄(s)

A white precipitate was formed, so Ca⁺² is present in the solution.

  • The following could take place after adding H₂S(aq):

Hg²⁺(aq) + S⁻² ↔ HgS(s)

A black precipitate formed, so Hg⁺² is present as well.

6 0
3 years ago
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