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Temka [501]
3 years ago
14

Ow doe the respiratory system work? (Use 3-5 sentences to explain how the respiratory system works.)

Chemistry
2 answers:
Juliette [100K]3 years ago
7 0

Answer:

The respiratory system is a system in your body that is in charge of helping you breathe. the respiratory system is made up of airways, lungs, and blood vessels, these parts work together to get oxygen into your body. Our respiratory system is a vital system, as it lets us live and breathe.

Explanation:

Here you go, don't copy exactly

anygoal [31]3 years ago
5 0
The respiratory system helps you breathe, absorb oxygen, and it cleans waste gases. your respiratory system also has problems such as allergies, diseases, and infections. it helps you smell, gives you protection from dust and microbes entering your body through your mucus production, cilia ( small nasal hairs ), and coughing.
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The iron content of foods can be determined by dissolving them in acid (forming Fe3+), reducing the iron(III) to iron(II), and t
____ [38]

Answer:

  • <em>Oxidation half-reaction</em>:

Fe²⁺(aq) →  Fe³⁺(aq) + 1e⁻

  • <em>Reduction half-reaction</em>:

Ce⁴⁺(aq) + 1e⁻ →  Ce³⁺(aq)

Explanation:

The reaction that takes place is:

  • Fe²⁺(aq) + Ce⁴⁺(aq) → Fe³⁺(aq) + Ce³⁺(aq)

The <em>oxidation half-reaction</em> is:

  • Fe²⁺(aq) →  Fe³⁺(aq) + 1e⁻

It is an oxidation because the oxidation state of Fe increases from 2+ to 3+.

The <em>reduction half-reaction</em> is:

  • Ce⁴⁺(aq) + 1e⁻ →  Ce³⁺(aq)

It is a reduction because the oxidation state of Ce decreases from 4+ to 3+.

4 0
3 years ago
5) O etanol C2H6O, combustível produzido em grande escala no Brasil, pode ser obtido pela fermentação da sacarose C12H22O11 enco
UNO [17]

Answer:

a) 0.15

Explanation:

A concentração de sacarose é 0,15 g / l no etanol. O Brasil está produzindo etanol em grandes quantidades que é usado como combustível em veículos e indústrias. Este etanol é produzido a partir da cultura da cana-de-açúcar e o Brasil é o segundo maior produtor mundial com cerca de 34,45 bilhões de litros em 2019. Os Estados Unidos da América e o Brasil produzem cerca de 84% do etanol mundial.

3 0
2 years ago
How does distillation separate a solvent from a solute?
lord [1]

Answer:

Distillable mixtures may contain a solid in a liquid. This method takes advantage of the boiling point of the substances.

In this way, for the distillation to take place correctly, the mixture must be boiled until the boiling point of the solvent is reached, which will then become steam and can be led to a cooled container, in which it will condense and recover its liquidity.  On the other hand the solute will remain in the container without alterations; having in both cases pure substances, free of the initial mixture.

5 0
3 years ago
What is the name of the molecule shown below?
mamaluj [8]

Answer:

2-Octene

Explanation:

A P E X

3 0
3 years ago
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Colloids are true solutions. <br><br><br> ____ True ____ False
Reptile [31]
This is false, they have intermediate properties between suspension and true solution
7 0
3 years ago
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