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Ostrovityanka [42]
3 years ago
10

Does entropy increase or decrease in the following processes?

Chemistry
1 answer:
DaniilM [7]3 years ago
8 0
Where are the following answers?
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2. Sate the method of collecting gases that are<br>ii). Lighter than ai<br>i). denser than air​
dybincka [34]

Answer:

i) Upwards delivery

ii) Downwards delivery

Explanation:

The methods used in the collection of gases are quite different depending on the state of the gas. The solubility and density of gases are the factors that determine the method of collection to be used.

Upwards delivery is used to collect gases that are soluble in water and lighter compared to air. Examples of these kind of gases include; Cl2 and SO2

Downwards delivery is used to collect gases that are soluble in water and denser than air. An example of this kind of gas is ammonia gas, NH4.

3 0
2 years ago
50 POINTS TO WHO ANSWERS THIS!!!
seropon [69]

Answer:

D

Explanation:

7 0
2 years ago
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A ray of yellow light has a wavelength of about 5.8×10−7 m. Will exposure to yellow light cause electrons to be emitted from ces
Dima020 [189]
Given the wavelength of the yellow light (700 nm. in this case) we can find the frequency 
<span>by dividing the speed of light c by the wavelength w, that is: f = c/w and we know that </span>
<span>c is equal to 2.998 * 10**8 meters per second. </span>
<span>So the frequency f = (2.998 * 10**8) / (7.0 * 10**-7) = 4.283 * 10**14 cycles per sec. </span>
<span>(or Hz.) Since the threshold frequency of Cs is 9.39 * 10**14 Hz, the red light doesn't </span>
<span>have a high enough frequency (or energy) to cause electron emission. </span>
<span>Hope this answers your question.</span>
8 0
3 years ago
What is the sharing of ideas and experimental findings with others through writing and speeking is called
Alex17521 [72]
The sharing of ideas and experimental findings with other through writing and speaking is called, COMMUNICATION
8 0
3 years ago
Which solution would have the lowest freezing point
Vitek1552 [10]

Answer:

Ice and water

Explanation:

4 0
3 years ago
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