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torisob [31]
3 years ago
6

What causes the pressure inside oxygen tanks to change as they are filled?

Chemistry
1 answer:
jonny [76]3 years ago
8 0

Answer:

The answer would be D.

: )

Explanation:

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What are the most enzymes in the body?
Alex787 [66]
Examples of specific enzymes
Lipases – a group of enzymes that help digest fats in the gut.
Amylase – helps change starches into sugars. ...
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4 0
4 years ago
A photon with 2.3 eV of energy can eject an electron from potassium. What is the corresponding wavelength of this type of light?
Ira Lisetskai [31]

Answer:

\lambda=540.16\ nm

Explanation:

Given that:

The energy of the photon = 2.3 eV

Energy in eV can be converted to energy in J as:

1 eV = 1.60 × 10⁻¹⁹ J

So, Energy = 2.3\times 1.60\times 10^{-19}\ J=3.68\times 10^{-19}\ J

Considering

Energy=\frac {h\times c}{\lambda}

Where,  

h is Plank's constant having value 6.626\times 10^{-34}\ Js

c is the speed of light having value 3\times 10^8\ m/s

\lambda is the wavelength of the light being bombarded

Thus,  

3.68\times 10^{-19}=\frac {6.626\times 10^{-34}\times 3\times 10^8}{\lambda}

\frac{3.68}{10^{19}}=\frac{19.878}{10^{26}\lambda}

3.68\times \:10^{26}\lambda=1.9878\times 10^{20}

\lambda=5.40163\times 10^{-7}\ m=540.16\times 10^{-9}\ m

Also,  

1 m = 10⁻⁹ nm

So,  

\lambda=540.16\ nm

3 0
4 years ago
Which statement best describes a solution?
lara31 [8.8K]

A mixture having a uniform composition where the components can't be seen separately and all components are in the same state best describes a solution.

 

<span>In chemistry, a </span>solution<span> is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.</span>

 

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

6 0
4 years ago
Read 2 more answers
What is always true about the kinetic energy of a single particle in a gas
marin [14]

Gas particles are in constant motion, and any object in motion has kinetic energy

7 0
3 years ago
Read 2 more answers
4.4 mol nitrogen.<br><br> VN2 = ____L
Arlecino [84]

Answer:

99 L

Explanation:

Step 1: Given data

Moles of nitrogen: 4.4 moles

Step 2: Calculate the volume occupied by 4.4 moles of nitrogen

The volume occupied by a gas depends on other conditions such as pressure  (P) and temperature (T). If we have this information, we can calculate the volume of the gas using the ideal gas condition.

P × V = n × R × T

Since the task doesn't inform the conditions, we can assume it is under standard pressure (1 atm) and temperature (273.15 K). At STP, 1 mole of any gas occupies 22.4 L.

4.4 mol × 22.4 L/1 mol = 99 L

3 0
3 years ago
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