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Arturiano [62]
3 years ago
12

Sodium reacts with water to produce sodium hydroxide and hydrogen gas:

Chemistry
1 answer:
Kruka [31]3 years ago
3 0

Answer:

3

Explanation:

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Carbon tetrachloride can be produced by the following reaction: Suppose 1.20 mol of and 3.60 mol of were placed in a 1.00-L flas
hjlf

The given question is incomplete. The complete question is :

Carbon tetrachloride can be produced by the following reaction:

CS_2(g)+3Cl_2(g)\rightleftharpoons S_2Cl_2(g)+CCl_4(g)

Suppose 1.20 mol CS_2(g) of and 3.60 mol of Cl_2(g)  were placed in a 1.00-L flask at an unknown temperature. After equilibrium has been achieved, the mixture contains 0.72 mol  of CCl_4. Calculate equilibrium constant at the unknown temperature.

Answer: The equilibrium constant at unknown temperature is 0.36

Explanation:

Moles of  CS_2 = 1.20 mole

Moles of  Cl_2 = 3.60 mole

Volume of solution = 1.00  L

Initial concentration of CS_2 = \frac{moles}{volume}=\frac{1.20mol}{1L}=1.20M

Initial concentration of Cl_2 = \frac{moles}{volume}=\frac{3.60mol}{1L}=3.60M

The given balanced equilibrium reaction is,

                 CS_2(g)+3Cl_2(g)\rightleftharpoons S_2Cl_2(g)+CCl_4(g)

Initial conc.         1.20 M        3.60 M                  0                  0

At eqm. conc.     (1.20-x) M   (3.60-3x) M   (x) M        (x) M

The expression for equilibrium constant for this reaction will be,

K_c=\frac{[S_2Cl_2]\times [CCl_4]}{[Cl_2]^3[CS_2]}

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

K_c=\frac{(x)\times (x)}{(3.60-3x)^3\times (1.20-x)}

Given :Equilibrium concentration of CCl_4 , x = \frac{moles}{volume}=\frac{0.72mol}{1L}=0.72M

K_c=\frac{(0.72)\times (0.72)}{(3.60-3\times 0.72)^3\times (1.20-0.72)}

K_c=0.36

Thus equilibrium constant at unknown temperature is 0.36

4 0
3 years ago
Which represents the self-ionization of water at 25°C? H2O + H2O 2H2 + O2 H2O + H2O H2O2 + H2 H2O + H2O 4H+ + 2O2- H2O + H2O H3O
Vitek1552 [10]
The fourth answer is correct 
H20 + H20  H30 + 0H-
6 0
3 years ago
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What volume of chlorine gas (Cl2), measured at STP, can be produced by the decomposition of 73.0g of hydrogen chloride gas (HCl)
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Answer:

Explanation:

2HCl    =   H₂   +   Cl₂

2 mole     1 mole      1 mole

73 gram HCl = 73 / 36.5 = 2 mole of HCl

2 moles of HCl will produce 1 mole of chlorine gas .

At STP , one mole of chlorine gas has volume equal to 22.4 litre .

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HELP ASAP 20 OR MORE POINTS!!!!
pishuonlain [190]
<h2>YeS im Am fRom pLanet k12 And brinG anD imPortant MesSage </h2>

  • The answer to your question is, <u><em>There are only so many ways matter can arrange itself within that infinite universe.</em></u>

<h2><em>Also if your on the same test as me heres some other sTuff that was on my test </em></h2><h2><em> </em></h2>

 Question 1 (1 point)  

In Brian Greene's "A Physicist Explains Why Parallel Universes May Exist", what reason does Greene give for why he believes parallel universes may exist?

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Choose the best explanation for why we experience the Mandela Effect.

  • <em>Answer: Our brains tend to fill in information that we cannot readily recall and make associations that are not true.</em>

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From the article "Time Travel Is A Fun Science Fiction Story But Could It Be Real?", Albert Einstein's Theory of Relativity is described as what?

 

  • <em>Answer:  The pulling force of gravity causes space to curve and causes time to slow down.</em>

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From the video " Are Wormholes The Answer To Time Travel?", how are worm holes described?

  • <em>Answer:   A tunnel in space connecting two regions very distant from each other. A "short cut" through space</em>

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Many scientists think human cloning is possible, so why haven't we made human clones yet?

  • <em>Answer:  Human cloning is extremely controversial and many people believe it is unethical</em>

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3 years ago
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How did Mendeleev set up his Periodic Table of Elements?
Ksju [112]
He set up his periodic table by the atomic mass
8 0
2 years ago
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