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bagirrra123 [75]
3 years ago
11

PLS HELP FOR FINAL!!!!!!!!!!!!!!

Chemistry
2 answers:
Akimi4 [234]3 years ago
7 0

Answer:

The answer is Ernest Rutherford.

Shkiper50 [21]3 years ago
5 0

Answer :

<h3> <em><u>Ernest</u></em><em><u> </u></em><em><u> </u></em><em><u>Rutherford</u></em></h3>

<h3><em>Hope</em><em> </em><em>I</em><em> </em><em>help</em></h3>

<em>Good</em><em> </em><em>Luck</em>

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An organism breathe with lungs lays eggs and has feathers the organism is?
NARA [144]
An organism that breathes with its lungs, lays eggs and has feathers is a bird!
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4 years ago
which of the following methods is most appropriate to use to determine the number of different-colored components in a sample of
Andru [333]

The answer is paper chromatography using different solvents with a range of polarities as the mobile phase.

Paper chromatography- Low-molecular-mass molecules can be separated using paper chromatography based on how evenly they are distributed in the stationary and mobile phases. Paper chromatography is regarded as a potent analytical technique because of its low cost and the availability of numerous procedures for the separation of chemicals.

A small amount of a sample solution is poured onto a strip of chromatography paper in a paper chromatography experiment. After that, a solvent is used to suspend the chromatography paper. The sample solution's constituent components split out into bands of distinct hue as the solvent goes up the paper.

The speed of the chromatography process is influenced by the solvent's polarity. Therefore, we may conclude that all of the other components in the mixture move more quickly during the chromatography experiment if the solvent's polarity is increased.

Thus, answer is paper chromatography using different solvents with a range of polarities as the mobile phase.

To learn more about paper chromatography refer- brainly.com/question/1394204

#SPJ4

3 0
1 year ago
A solar panel combines multiple photovoltaic cells. Which type of energy is used to power a solar panel?
Softa [21]

Explanation:

<u>Photovoltaic means electricity from light</u>

photo = <em>light </em> voltaic = <em>electricity</em><em> </em>

<u>SUNLIGHT</u> is the answer

Hope this is correct

HAVE A GOOD DAY!

3 0
3 years ago
Read 2 more answers
A quantity of 0.0250 mol of a gas initially at 0.050 L and 19.0°C undergoes a constant-temperature expansion against a constant
KiRa [710]

Answer:

V_2=2.995L\\\\W=248.5J

Explanation:

Hello,

In this case, for us to compute the final volume we apply the Boyle's law that analyzes the pressure-volume temperature as an inversely proportional relationship:

P_1V_1=P_2V_2

So we solve for V_2 by firstly computing the initial pressure:

P_1=\frac{nRT}{V_1}=\frac{0.025mol*0.082\frac{atm*L}{mol*K}*(19+273.15)K}{0.050L}  =11.98atm

V_2=\frac{P_1V_1}{P_2}=\frac{11.98atm*0.050L}{0.200atm}\\ \\V_2=2.995L

Finally, we can compute the work by using the following formula:

W=nRTln(\frac{V_2}{V_1} )=0.025mol*8.314\frac{J}{mol*K}*(19.0+273.15)K*ln(\frac{2.995L}{0.050L}) \\\\W=248.5J

Best regards.

4 0
4 years ago
Causes of flooding ??
kkurt [141]

Answer:

Heavy rains

overflowing

Broken Dams

3 0
3 years ago
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