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3 years ago

¿que ocurre con el electrón de Valencia del K+ en el compuesto bromuro de potasio KBr

Chemistry

1 answer:

arlik [135]3 years ago

6 0

I don’t understandbddss

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9. Which of the following accurately describes the orbits of the planets in the solar system?

lana [24]

Answer:

the awnser is B

Explanation:

the awnser is B

7 0

3 years ago

Serhud [2]

Explanation:

Given that,

The frequency of electromagnetic spectrum is $2.73\times 10^{16}\ Hz$

(A) Let the wavelength of this radiation is $\lambda$ . We know that,

$c=f\lambda\\\\\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{2.73\times 10^{16}}\\\\\lambda=1.09\times 10^{-8}\ m$

So, the wavelength of this radiation is $1.09\times 10^{-8}\ m$ .

(B) Let E is the energy associated with this radiation. Energy of an electromagnetic radiation is given by :

$E=hf$

h is Planck's constant

$E=6.63\times 10^{-34}\times 2.73\times 10^{16}\\\\E=1.8\times 10^{-17}\ J$

1 kcal = 4184 J

It means,

$1.8\times 10^{-17}\ J=\dfrac{1}{4184}\times 1.8\times 10^{-17}\\\\=4.3\times 10^{-21}\ \text{kcal}$

Hence, this is the required solution.

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4 years ago

(PLZ HELP ME ON THIS!!!) Which of the following will change if you apply unbalanced forces to an object?

S_A_V [24]

D) Its position changes because the unbalanced forces move the object.

8 0

4 years ago

Read 2 more answers

In one of your classes, you were asked to start a program that would help the government in environmental conservation,

kirill [66]

The answer is C

Because using crocodile skin won’t benefit the environment

5 0

3 years ago

A cool, yellow-orange flame is used to heat the crucible. Would this affect the mass of the crucible? If so, how?

s2008m [1.1K]

Answer:

yes

Explanation:

Usually, it would not affect the crucible, but depending on the temperature of the flame the enamel of the crucible may begin to melt and stick to the metal object being used to handle the crucible. This tiny amount that is melted off can cause very small changes in the original mass of the crucible, which although it is almost unnoticeable it is still there. Therefore, the answer to this question would be yes.

5 0

3 years ago

¿que ocurre con el electrón de Valencia del K+ en el compuesto bromuro de potasio KBr​

¿que ocurre con el electrón de Valencia del K+ en el compuesto bromuro de potasio KBr