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Anestetic [448]
3 years ago
15

What is the relationship between air pressure, density, and altitude?

Chemistry
1 answer:
Free_Kalibri [48]3 years ago
6 0

Answer:

''The relationship between air pressure, air density, or altitude? As altitude increases, pressure increases. As altitude increases, air density increases. Air pressure and density are lowest at sea level.''

Explanation:

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Calculate the maximum amount of useful work that can be obtained and comment on the spontaneity for the reaction at 25C :
harkovskaia [24]

Answer:

1.41 *10^{3}  kJ/mol

Explanation:

First, we find in the tables the ΔH of formation of each compound. As you can see in the (image 1)

Then we solve the ecuation for ΔH°reaction

ΔH°reaction=∑ΔH°f(products)−∑ΔH°f(Reactants)

ΔH°reaction= (-2* 393.5 - 2*285.8) - (52.4 + 0) kJ/mol

ΔH°reaction = -1.41 *10^3  kJ/mol

3 0
3 years ago
16. Chemists can synthesize new materials using
Alex787 [66]

Answer:

Yes Concurred,but where is the question

8 0
3 years ago
How many moles of nickel (Ni) atoms are in 125 g Ni?
Anna11 [10]
<span>The solution to the problem is as follows:

125/58.69 = 2.12 mol 
</span>
Therefore, there are 2.12 moles of <span>nickel (Ni) atoms are in 125 g Ni.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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3 0
3 years ago
Read 2 more answers
Suppose you have a 2.0 molar solution of sodium hydroxide (naoh), and you need 65 ml of 0.6 molar naoh. how should you make this
nalin [4]

The given molarity of sodium hydroxide solution = 2.0 M

The required concentration of sodium hydroxide is 65 mL of 0.6 M NaOH

Converting 65 mL to L:

65mL*\frac{1L}{1000mL} =0.065L

Calculating the moles of NaOH in the final solution:

0.065L * \frac{0.6 mol}{L} =0.039mol

Finding out the volume of 2.0 M solution taken to prepare the final solution:

0.039 mol * \frac{1L}{2.0mol}=0.0195L*\frac{1000mL}{1L} =19.5mL

Therefore, 19.5 mL of 2.0 M NaOH solution and make it up to 65 mL to prepare 0.6 M NaOH solution.


3 0
3 years ago
What other product occurs when ac-222 releases an alpha particle?
irga5000 [103]
There is fr-218

hope this did the job, have a nice rest of your day!!

3 0
4 years ago
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