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kvv77 [185]
3 years ago
11

Which Two process is it Giving brainliest

Chemistry
1 answer:
Masja [62]3 years ago
8 0

Answer:

C and D!

Explanation:

Don't listen to the other dude above me.

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A tank containing methanol has walls 2.50 cm thick made of glass of refractive index 1.550. Light from the outside air strikes t
anyanavicka [17]

18.6

use snells law for glass n=sini/sinr

the value of angle of refraction in glass becomes value of angle of incidence in the glass methanol interface

use snells law again to get the angle light makes with methanol.

4 0
3 years ago
alculate the energy for vacancy formation in silver, given that the equilibrium number of vacancies at 800°C (1073 K) is 3.6 × 1
bearhunter [10]

The answer & explanation for this question is given in the attachment below.

4 0
3 years ago
Why does a solute depress the freezing point?
Marina86 [1]
<span><span>When the solvent disrupts the solvents ability to form that crystal lattice and thus need lower temperatures (freezing point depression) than normally expected to form the solid. </span>

My guess would be: B. The solute disrupts crystals formation by the solvent
</span>
5 0
4 years ago
Read 2 more answers
A sample of hexane (C6H14) has a mass of 0.580 g. The sample is burned in a bomb calorimeter that has a mass of 1.900 kg and a s
gulaghasi [49]
The answer is 27.7

According to this equation:
q = M C ΔT
When q= the energy that produced when there is a difference in temperature.
M (g) = amount of the material= 1.900 Kg= 1900 g
ΔT= difference in temperature ( in kelvin or C°)= 4.542 K
C= Specific heat capacity=3.21

∴ q = 1900 * 4.542 * 3.21 = 27701.7 J = 27.7 KJ


7 0
4 years ago
Read 2 more answers
23.73 g of some metal has a volume of 3.0mL.<br> Find this metals density.
vredina [299]

Answer:

<h2>7.91 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{23.73}{3.0}  \\

We have the final answer as

<h3>7.91 g/mL</h3>

Hope this helps you

4 0
3 years ago
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