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Dimas [21]
2 years ago
10

What organ is a muscle and expands and contracts to allow lungs to take in air

Chemistry
2 answers:
jeka57 [31]2 years ago
4 0

Answer:

Your diaphragm contracts and expands

Katyanochek1 [597]2 years ago
4 0

Answer:

The diaphragm

Explanation:

The diaphragm, located below the lungs, is the major muscle of respiration.

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konstantin123 [22]
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5 0
3 years ago
Any mixture that is heterogeneous on a microscopic level is a
Nadya [2.5K]
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5 0
3 years ago
What is the pH when the hydrogen ion concentration is 1 x 10-3 M?
Fynjy0 [20]

Answer:

e. 3

Explanation:

In order to solve this problem we need to keep in mind the definition of pH:

  • pH = -log[H⁺]

As stated by the problem, the hydrogen ion concentration, [H⁺], is 1x10⁻³ M.

As all required information is available, we now can <u>calculate the pH</u>:

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6 0
2 years ago
What volume of stock solution and water must you add to prepare 36.25ml of a 1.25M solution
Serjik [45]

Given :

Number of moles , n = 36.25 mol .

Molarity , M = 1.25 M .

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The volume of water required .

Solution :

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So , V=\dfrac{n}{M}

Here , n is number of moles and M is molarity .

Putting all values in above equation , we get :

V=\dfrac{36.25}{1.25}\\\\V=29\ L

Therefore , volume of water required is 29 L .

5 0
3 years ago
What mass of oxygen is needed to combust and produced 6.4 moles of carbon dioxide gas?
N76 [4]
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6 0
3 years ago
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