1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
blsea [12.9K]
3 years ago
9

7. At what structures in the lungs do the exchange of oxygen and carbon dioxide take place?

Chemistry
2 answers:
zlopas [31]3 years ago
8 0
It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli. The walls of the alveoli actually share a membrane with the capillaries in which oxygen and carbon dioxide move freely between the respiratory system and the bloodstream.
mrs_skeptik [129]3 years ago
3 0

Answer:

Answer is Alveoli

Hope it helps.... plz mark as brainliest

You might be interested in
True or False: the force of attraction that holds two atoms together is called a chemical bond
Genrish500 [490]
The answer is true.
5 0
3 years ago
Which part of the atom forms chemical bonds?
Leokris [45]
Out of the choices given, the part of the atom that forms chemical bonds are the outermost electrons. The correct answer is B. 
8 0
3 years ago
Read 2 more answers
The is the si unit that expresses the amount of substance. Specifically, it is defined as the amount of substance containing the
Dmitry_Shevchenko [17]

The <u>Mole</u> is the SI unit that expresses the amount of substance.

Mole is defined as - The mole is the amount of substance containing the same number of entities as there are in the 12 grams of Carbon - 12.

Mole is denoted by using symbol mol.

      Mole = 6.022 x 10²³ elementary entities.

These number of elementary entities in 1 mole is equal to or called as an Avogadro's number.  Mole is equal to 6.022 x 10²³ because this number of entity is same as in exactly 12 g of carbon-12.

It is a very important SI unit of measured which is used by the chemists. Moles are used in measuring in small or tiny things such as atoms, molecules and the other tiny particles.

To learn more about the mole concept,

brainly.com/question/28498715

#SPJ4

3 0
1 year ago
Calculate the molality of a 5.73 M ethanol (C2H5OH) solution whose density is 0.9327 g/mL.
Natalka [10]

Answer:

Molality = 8.57 m

Explanation:

Given data:

Molarity of solution = 5.73 M

density = 0.9327 g/mL

Molality of solution = ?

Solution:

Molality = moles of solute / kg of solvent.

Kg of solvent:

Mass of 1 L solution = density× volume

Mass of 1 L solution = 0.9327 g/mL × 1000 mL

Mass of 1 L solution = 932.7 g

Mass of solute:

Mass of 1 L = number of moles  × molar mass

Mass = 5.73 mol  × 46.068 g/mol

Mass = 263.97 g

Mass of solvent:

Mass of solvent = mass of solution - mass of solute

Mass of solvent = 932.7 g - 263.97 g

Mass of solvent = 668.73 g

In Kg = 668.73 /1000 = 0.6687 Kg

Molality:

Molality = number of moles of solute / mass of solvent in Kg

Molality = 5.73 mol /  0.6687 Kg

Molality = 8.57 m

4 0
2 years ago
Ca3(PO4)2 + 3H2SO4  3CaSO4 + 2H3PO4.
Dominik [7]
If anything isn’t obvious, don’t hesitate to ask me
Check the attached photo out...

4 0
2 years ago
Other questions:
  • What are the five steps a flavor chemist needs to review before starting a flavor project
    5·1 answer
  • When 15.6 g of fluorite (caf2) reacts with excess sulfuric acid, hydrogen fluoride gas is collected at 709 torr and 25.5°c. sol
    5·1 answer
  • If 1.02 g of nickel reacted with 750. mL of 0.112 M hydrobromic acid, how much of each will be present at the end of the reactio
    8·1 answer
  • Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12
    13·1 answer
  • The 1995 Nobel Prize in Chemistry was shared by Paul Crutzen, F. Sherwood Rowland, and Mario Molina for their work concerning th
    11·1 answer
  • Someone help me plz :))) brainliest
    7·1 answer
  • Thủy phân m gam mantozo, sau một thời gian thu được dung dịch X. Khi cho dung dịch X tác dụng gần hết với dung dịch AgNO3 trong
    14·1 answer
  • Food chains always begin with what type of organism? Why?
    10·1 answer
  • HCl + CaCO3 → CaCl2 + H2O + CO2 balanced equation<br><br><br> Pls Help i will give 100 Points!!!
    13·2 answers
  • What is the average dose of radiation that most people are exposed to every year not including dental or medical personnel deali
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!