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stepan [7]
4 years ago
9

What is the electron configuration of a potassium ion when it has formed an ionic bond with a bromine ion?

Chemistry
2 answers:
garri49 [273]4 years ago
6 0

Answer:

A

Explanation:

devlian [24]4 years ago
5 0
The answer is A right
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The Henry's law constant (kH) for O2 in water at 20°C is 1.28e-3 mol/l atm. How many grams of O2 will dissolve in 3.5 L of H2O t
Sophie [7]

Answer : The mass of O_2 dissolved will be, 0.2365 grams

Explanation :

First we have to calculate the concentration of O_2.

As we know that,

C_{O_2}=k_H\times p_{O_2}

where,

C_{O_2} = concentration of O_2 = ?

p_{O_2} = partial pressure of O_2 = 1.65 atm

k_H = Henry's law constant = 1.28\times 10^{-3}mole/L.atm

Now put all the given values in the above formula, we get:

C_{O_2}=(1.28\times 10^{-3}mole/L.atm)\times (1.65atm)

C_{O_2}=2.112\times 10^{-3}mole/L

The concentration of O_2 = 2.112\times 10^{-3}mole/L

Now we have to calculate the moles of O_2

\text{Moles of }O_2=\text{Concentration of }O_2\times \text{volume of solution}

\text{Moles of }O_2=(2.112\times 10^{-3}mole/L)\times (3.5L)=7.392\times 10^{-3}mole

Now we have to calculate the mass of O_2

\text{Mass of }O_2=\text{Moles of }O_2\times \text{Molar mass of }O_2

\text{Mass of }O_2=(7.392\times 10^{-3}mole)\times (32g/mole)=0.2365g

Therefore, the mass of O_2 dissolved will be, 0.2365 grams

4 0
3 years ago
Can you give a step by step direction slime experiment?
fredd [130]

Slime is made of glue, water, and borax

5 0
3 years ago
Read 2 more answers
For an electron with angular (azimuthal) quantum number ℓ = 2, the magnetic quantum number m can have
Paraphin [41]

Answer:

-2, -1, 0, +1, +2

Explanation:

The quantum numbers describe the quantum state of an electron in an atom. These numbers are symbolized as n, l, m, and s. There are rules for the combination of these numbers. The angular quantum number (ℓ) is related to the magnetic number (<em>m</em>): if ℓ is equal to a number a, thus <em>m</em> can be any integer number between - a and +a.

According to this rule:

If ℓ = 2, thus <em>m</em> can be have a value of an integer between -2 and +2 ⇒ -2, -1, 0, +1, +2

6 0
3 years ago
The diagonals of a rhombus are 6 and 8. The area of the rhombus is 20 24 48
Serhud [2]

Answer:

= 24 square units

Explanation:

The area of a rhombus is given by the formula;

Area = pq/2

Where p and q are the diagonals of the rhombus.

In this case; p = 6 and q = 8

Therefore;

Area = (6×8)/2

        = 24 square units

6 0
3 years ago
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Which of the following is false regarding supersonic speed?
katen-ka-za [31]

Answer:

the answer is C

Explanation:

i know this one, and may YOU PLEASE MARK BRAINLIEST I ONLY NEED ONE MORE CROWN TO MOVE TO THE NEXT RANK

7 0
3 years ago
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