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omeli [17]
3 years ago
5

Learning calculations in chemistry

Chemistry
1 answer:
olasank [31]3 years ago
7 0
What question do u have?
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What is the energy of a radio wave whose frequency is 6.2 x 106 Hz?
slava [35]

Answer:

657.2 Hz

Explanation:

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Looking at the different chemical structures, which one(s) might be able to hold
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Answer:

c) Fullerene and carbon nanotubes because they have empty spaces inside the  molecules

Explanation:

Fullerene and carbon nanotubes would be the most desired in order to hold the cancer fighting drugs and to carry them through the body safely.

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From Young's experiment, how does the frequency of light affect the number of lines observed?
Marina CMI [18]

Answer : (C) "Higher frequencies have larger spaces between lines".

Explanation:

In Young's experiment, the condition for constructive interference is given by :

dsin\theta=n\lambda.........(1)

n is order or number of lines observed

d is distance between slits

\theta is the angle between the path and the line from screen to the slits.

We also know that, c=\nu \lambda

or

\lambda=\dfrac{c}{\nu}

where,

c is the speed of light

\nu is frequency

\lambda is wavelength

So, equation (1) turns into

dsin\theta=n\dfrac{c}{\nu}

\nu=\dfrac{n\ c}{d\ sin\theta}

So,

\nu\propto n

or

Higher frequencies have larger spaces between line.

So, correct option is (C).

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Which chemical formula shows two atoms of iron (Fe) and three atoms of oxygen (O)?
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Fe  O
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What is the name of this unstable isotope from number 9?
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Is there a picture of the isotope or?- becaue I can’t help if I don’t have a visual.

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