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liberstina [14]
3 years ago
15

It is lab investigations day! What clothes should you wear to school?

Chemistry
2 answers:
dusya [7]3 years ago
6 0
Baggy shirt and pants
faust18 [17]3 years ago
6 0
I think either baggy or short. Is this a question or are you just decide if what to wear.
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I will give brainliest!!! In the reaction represented by the equation Al2O3 -> Al + O2, what is the mole ratio of aluminum to
Effectus [21]

Answer:;

4:3

Explanation:

Balanced:

4Al + 302 yields 2al2O3

7 0
3 years ago
Identify the type of reaction in KBrO3(s)  KBr(s)<br> + O2(g)
lord [1]
<span>I believe an oxidation reaction is occurring</span>
5 0
4 years ago
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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

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\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).

3 0
3 years ago
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What is the percentage of nitrogen in ammonium chloride (NH4Cl)?
Katena32 [7]

Answer:

25%

Explanation:

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4 0
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Why is carbon tetrachloride a liquid at room temperature
miv72 [106K]
Because I'm the warm it melts in the cold it's frozen
3 0
4 years ago
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