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aniked [119]
3 years ago
7

In order for a solute to dissolve in a solvent, what must be true?

Chemistry
1 answer:
Alex Ar [27]3 years ago
6 0
The solute has to be hydrophilic, (water loving).
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Two hydrogen atoms collide in a head on collision and end up with zero kinetic energy. Each then emits a photon of 121.6 nm (n=2
Zinaida [17]

Explanation:

Expression for the kinetic energy is as follows.

         K.E = \frac{1}{2}mv^{2}

Now, total kinetic energy will be as follows.

    K.E = 2 \times \frac{1}{2}mv^{2} = m \times v^{2}

Since, this energy converts into electromagnetic radiation of wavelength 121.6 nm.

Relation between energy and photon is as follows.

   Energy of photon = \frac{hc}{\lambda}

                                = \frac{6.626 \times 10^{-34} \times 3 \times 10^{8}}{121.6 \times 10^{-9}}

                                 = 1.63 \times 10^{-18} J

    m \times v^{2} = 1.63 \times 10^{-18}

          v = \sqrt{\frac{1.63 \times 10^{-18}}{1.67 \times 10^{-27}}

             = 3.12 \times 10^{4} m/s

Thus, we can conclude that atoms were moving at a speed of 3.12 \times 10^{4} m/s before the collision.

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3 years ago
Why is the anatomy of the human body not a general reason to study chemistry. Need help for a good reply.
ivolga24 [154]
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What is the volume of 2.0 mol CO2 at STP?
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44.8 litres is the answer to the question

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A small positively charged ball is moved closer to a large, positively charged ball. which describes how the small ball likely r
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Answer:

This is just my guess, but since opposites attract, then im guessing that alikes repel each other. So, they will go away from each other when the ball is released (I think).

Explanation:

Hope this helps! If it did, please mark it as brainliest! It would help a lot! Thanks! :D

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