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Ulleksa [173]
3 years ago
8

Which of the following includes the correct pairing of volcano and its formation? Cinder volcano; large, explosive eruptions Cin

der volcano; alternating quiet and explosive eruptions Shield volcano; large, quiet eruptions Composite volcano; large; violent eruptions
Chemistry
2 answers:
noname [10]3 years ago
6 0

Shield volcano; large, quiet eruptions

Anarel [89]3 years ago
4 0
The correct pairing of the volcano to its formation would be the composite volcano wherein it usually yields large and violent eruptions. In addition to that, composite volcanoes or also known as the stratovolcano is usually made of materials containing increasing layers of hardened lava.
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Predict the sign for AS for each of the following systems: Water freezing Water evaporating Crystalline urea dissolving Assembly
djyliett [7]

Answer:  1.  Water freezing : \Delta S is -ve.

2. Water evaporating : \Delta S is +ve.

3. Crystalline urea dissolving : \Delta S is +ve.

4. Assembly of the plasma membrane from individual lipids: \Delta S is -ve.

5.  Assembly of a protein from individual amino acids: \Delta S is -ve.

Explanation:

Entropy is defined as the measurement of degree of randomness in a system.

It is represented by symbol S and we can only measure a change in entropy which is given by \Delta S.

If there is decrease in randomness , the sign for \Delta S is -ve and If there is increase in randomness , the sign for \Delta S is +ve.

1.  Water freezing: Entropy decreases as we move from liquid state to  to solid state and thus \Delta S is -ve.

2. Water evaporating : Entropy increases as we move from liquid state to  gaseous state and thus \Delta S is +ve.

3. Crystalline urea dissolving : The molecules convert from solid and ordered state to aqueous phase and random state. Thus the entropy increases and thus \Delta S is +ve.

4. Assembly of the plasma membrane from individual lipids:  random lipids are associating to form a single large polymer and thus entropy decreases and thus \Delta S is -ve.

5. Assembly of a protein from individual amino acids: random amino acids are associating to form a single large polymer and thus entropy decreases and thus \Delta S is -ve.

5 0
3 years ago
A blu-ray laser has a wavelength of 405nm. In what region of the electromagnetic spectrum is this radiation? What is its frequen
love history [14]

Answer:

It lies in in the <u>visible</u><u> </u><u>region</u><u>.</u>

Frequency: <u>is</u><u> </u><u>7</u><u>.</u><u>4</u><u>0</u><u>7</u><u> </u><u>×</u><u> </u><u>1</u><u>0</u><u>^</u><u>-</u><u>1</u><u>4</u><u> </u><u>Hz</u>

{ \bf{V = f \lambda}} \\ { \tt{3.0 \times  {10}^{8}  = f \times (405 \times  {10}^{ - 9}) }} \\ { \tt{f = 7.407 \times  {10}^{14}  \: hertz}}

Explanation:

V is speed of light.

f is frequency

lambda is the wavelength

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The answer is B

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