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4 years ago

In which aqueous solution will the most ZnS dissolve?

Chemistry

2 answers:

sineoko [7]4 years ago

8 0

1) 0.1 M NaCl
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lesya [120]4 years ago

3 0

Answer:

1) NaCl 0.1 M

Explanation:

It will dissolve more in the aqueous NaCl solution.

All other solutions have a common ion with salt.

They will saturate faster by the effect of the common ion.

The effect of the common ion occurs when the elements that make up the solute are present in the aqueous solution.

As in the solution, there is already a certain amount of the element the solution will tolerate less solute and will precipitate faster under these conditions, unlike we add this same amount of solute in a solution that does not contain any element of the solute.

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Whose atomic model could be described as a positive, solid sphere in which electrons are disbursed? A) Rutherford B) Dalton C) T

goldfiish [28.3K]

Thomson suggested the model of atom which was a sphere of positive matter within which electronic forces determined the positioning of the corpuscles. The corpuscles were distributed in a uniform sea of positive charge. This was so-called "plum pudding" model.
Answer: C ) Thomson

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3 years ago

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Many inland areas around Florida contain extinct marine fossils. Which of the following statements best describes how this might

GaryK [48]

Answer:

Explanation:

strong winds carried marine organisms inland where they were buried and fossilized under layer of sediment

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3 years ago

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Choose the larger atom from each pair, if possible.

Ksivusya [100]

Answer:

a. Sn or Si ⇒ Sn

b. Br or Ga ⇒ Ga

c. Sn or Bi ⇒ similar in size

d. Se or Sn ⇒ Sn

Explanation:

The larger atom has a larger atomic radius. We have to consider how varies the atomic radius for chemical elements in the Periodic Table. In a group (column), the atomic radius increases from top to bottom while in a period (file), it increases from right to left.

a. Sn or Si ⇒ Sn

They are in the <u>same group</u>. Sn is on the top, so it has a larger atomic radius.

b. Br or Ga ⇒ Ga

They are in the <u>same period</u>. Ga is located at the left so it has a larger atomic radius.

c. Sn or Bi ⇒ similar

They are not in the same group neither the same period. Bi is located more at the bottom, so it would be larger than Sn, but Bi is also at the right side, so it would be smaller than Bi. Thus, they have comparable sizes.

d. Se or Sn⇒ Sn

They are not in the same group neither the same period. Se is located at the top and right side compared to Sn, so Sn is the larger atom.

3 0

3 years ago

How many milliliters o a suspension base must be mixed with 250 mL o a paroxetine (PAXIL) oral suspension, 10 mg/5 mL, to change

Maksim231197 [3]

Answer : The suspension base added will be, 250 mL

Explanation :

As we are given that the initial concentration of solution is, 10 mg/5mL or we can say that 2 mg/mL.

Volume of solution = 250 mL

First we have to determine the mass of PAXIL.

As, 1 mL of solution contain mass of PAXIL = 2 mg