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3 years ago

is there a difference between a homogenouos mixture of hydrogen gas and oxygen gas, and a sample of vapor? explain?

1 answer:

8 0

Yes. In a homogeneous mixture the hydrogen and oxygen are not chemically combined; in water vapor, they are. You can separate a homogeneous mixture of hydrogen and oxygen by physical means, such as by cooling the mixture until the oxygen liquefies. If you cool water vapor you're just going to get liquid water and then ice - not two separate substances. That's because compounds can only be separated into their elements by chemical means.

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Iron iii chloride+ copper ii sulfate balanced equation

Bogdan [553]

Answer:

Iron (iii) chloride reacts with copper (ii) sulfate to give iron sulfate and copper chloride.

Explanation:

The balanced equation of iron iii chloride+ copper ii sulfate is as follows.

$$2FeCl_{3}+3CuSO_{4} \to Fe_{2}(SO_{4})_{3}+3CuCl_{2}$

5 0

4 years ago

Vegetarians do not eat animal products but rather derive their protein from plant sources. Which type of protein do vegetarian f

Whitepunk [10]

Answer: lysine and methionine

Explanation:

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3 years ago

How many chiral centres are there in warfarin molecule?

kolbaska11 [484]

I'm actually not sure... but maybe this will help!
http://www.dummies.com/education/science/chemistry/how-to-identify-chiral-centers-in-a-molecule/

6 0

4 years ago

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Calculate the pH at of a 0.10 Msolution of anilinium chloride . Note that aniline is a weak base with a of . Round your answer t

notsponge [240]

The question is incomplete, here is the complete question:

Calculate the pH at of a 0.10 M solution of anilinium chloride $(C_6H_5NH_3Cl)$ . Note that aniline $(C6H5NH2)$ is a weak base with a $pK_b$ of 4.87. Round your answer to 1 decimal place.

Answer: The pH of the solution is 5.1

Explanation:

Anilinium chloride is the salt formed by the combination of a weak base (aniline) and a strong acid (HCl).

To calculate the pH of the solution, we use the equation:

$pH=7-\frac{1}{2}[pK_b+\log C]$

where,

$pK_b$ = negative logarithm of weak base which is aniline = 4.87

C = concentration of the salt = 0.10 M

Putting values in above equation, we get:

$pH=7-\frac{1}{2}[4.87+\log (0.10)]\\\\pH=5.06=5.1$

Hence, the pH of the solution is 5.1

8 0

3 years ago

The state of matter of the interior of the sun and other stars

Sphinxa [80]

Answer: It is, as all stars are, a hot ball of gas made up mostly of Hydrogen. The Sun is so hot that most of the gas is actually plasma, the fourth state of matter. ... As we heat up liquid, the liquid turns to gas. Gas is the third state of matter

Explanation:

7 0

3 years ago

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