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Vlada [557]
2 years ago
9

Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is the

Chemistry
1 answer:
Ira Lisetskai [31]2 years ago
3 0

Answer: B aka #2

Explanation:

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PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
frozen [14]
POPULATION SIZE DECREASE

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We know that amount of resources available affects the population size.


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Sometimes the population size will decrease so much that it threatens the entire species.
6 0
3 years ago
Find δs∘ for the reaction between nitrogen gas and hydrogen gas to form ammonia:12n2(g) 32h2(g)→nh3(g)
Dima020 [189]

Nitrogen (N2) and hydrogen (H2) gases react to form ammonia, which requires -99.4 J/K of standard entropy (ΔS°).

What is standard entropy?

The difference between the total standard entropies of the reaction mixture and the summation of the standard entropies of the outputs is the standard entropy change. Each entropy in the balanced equation needs to be compounded by its coefficient, as shown by the letter "n."

Calculation:

Balancing the given reaction following-

1/2 N₂(g) + 3/2 H₂ (g)→ NH₃ (g)

ΔS° = [1 mol x S° (NH₃)g] - [1/2 mol x S° (N₂)g] - [3/2 mol x S°(H₂)g]

Here S° = standard entropy of the system

Insert into the aforementioned equation all the typical entropy values found in the literature:

ΔS° = [1 mol x 192.45 J/mol.K] - [1/2 mol x 191.61 J/mol.K] - [3/2 mol x 130.684 J/mol.K]

⇒ΔS° = - 99.4 J/K

Therefore, the standard entropy, ΔS° is -99.4 J/K.

Learn more about standard entropy here:

brainly.com/question/14356933

#SPJ4

5 0
1 year ago
Which sentence best describes how scientists plan out their experiments?
malfutka [58]

Answer:

D

Explanation:

8 0
3 years ago
Read 2 more answers
Now liters at the same temperature and pressure: liters of H2 + liters of O2 → liters of H2O
iragen [17]
The answer is 2H2 + O2----> 2H2O
5 0
3 years ago
Why are 1-chlorobutane and 2-chlorobutane structural isomers?.
Nutka1998 [239]

Answer: they both have the same molecular formula but different structural formulae

Explanation:

hope this helps :)

6 0
2 years ago
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