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riadik2000 [5.3K]
3 years ago
6

Given the chemical equation, predict the ΔS system for this change.

Chemistry
1 answer:
Setler79 [48]3 years ago
4 0

Answer : The \Delta S system for this change is, negative (-\Delta S).

Explanation :

Entropy : It measure the randomness and the disorderedness of the system.

As we know that the entropy increases, (+\Delta S) as we are moving from the solid state to liquid state and liquid state to gaseous state and the entropy decreases, (-\Delta S) as we are moving from gaseous state to liquid state and liquid state to solid state.

The given reaction is,

O_2(g)\rightarrow O_2(aq)

In this reaction, the phase changes from gaseous state to liquid or aqueous state. That means the entropy of the system for this change will be negative.

Hence, the \Delta S system for this change is, negative (-\Delta S).

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3 0
2 years ago
How fast is the speed of light?
Tpy6a [65]

The speed of light is 299,792,458 meters per second in vacuum.
It's somewhat slower in any material substance, and different in
each substance.

(That's 186,282.4  miles per second.)


7 0
3 years ago
3. Challenge: Select Distance again from the Conversion menu. Use the conversion factors on the tiles to
Gnom [1K]

Answer: 1 liter

Explanation:

3 0
2 years ago
What are you suppose to do for number 8?
Nadya [2.5K]

Answer:

See the images below  

Step-by-step explanation:

To draw a dot diagram of an atom, you locate the element in the Periodic Table and figure out how many valence electrons it has. Then you distribute the electrons as dots around the atom,

a. Silicon.

Si is in Group 14, so it has four valence electrons.

b. Xenon

Xenon is in Group 18, so it has eight valence electrons. We group them as four pairs around the xenon atom.

c. Calcium

Calcium is in Group 2, so it has two valence electrons. They are in a single subshell, so we write them as a pair on the calcium atom.

d. Water

Oxygen is in Group 16, so it has six valence electrons. The hydrogen atoms each contribute one electron, so there are eight valence electrons.

Chemists often use a dash to represent a pair of electrons in a bond.

3 0
3 years ago
Is steel wool and vinegar an exothermic reaction? Explain.
Ivanshal [37]

Answer:

Vinegar contains acetic acid which removes this coating. When the protective coating is removed, oxygen in the atmosphere can reach the iron in the steel wool and a chemical reaction called oxidation occurs. ... This reaction is also an exothermic reaction. It creates heat energy

Explanation:

hope this helps u

7 0
3 years ago
Read 2 more answers
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