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
kaheart [24]
3 years ago
11

Imagine a friend is planning a rock-climbing trip. Write a note in the box explaining how gas exchange is affected at the top of

a mountain, where air pressure is lower and there is less oxygen than at lower altitudes.
Chemistry
1 answer:
wariber [46]3 years ago
6 0

Answer:

Air is less dense on a mountaintop than at sea level.

Air pressure is lower at low altitudes.

As you climb a mountain, air pressure increases.

More force pushes on the air at the bottom of an air column.

As you descend a mountain, air molecules are closer together.

Explanation:

You might be interested in
What city is the capital of nebraska
Aleks04 [339]

Answer:

Lincoln

Explanation:

ITS CORRECT

5 0
3 years ago
Read 2 more answers
5 example of dilute solution
Dmitry_Shevchenko [17]

Answer:

Explanation:

tab water

the sea water

cup of orange juice

blood

cup of tea

6 0
3 years ago
Read 2 more answers
Chromic acid (H2CrO4) is an acid that is used in ceramic glazes and colored glass. The pH of a 0.078 M solution of chromic acid
cestrela7 [59]

Answer:

Ka = 0.1815

Explanation:

Chromic acid

pH = ?

Concentration = 0.078 M

Ka = ?

HCl

conc. = 0.059M

pH = -log(H+)

pH = -log(0.059) = 1.23

pH of chromic acid = 1.23

Step 1 - Set up Initial, Change, Equilibrium table;

H2CrO4 ⇄  H+   +   HCrO4−

Initial - 0.078M 0   0

Change : -x    +x       +x

Equilibrium : 0.078-x    x      x

Step 2- Write Ka as Ratio of Conjugate Base to Acid

The dissociation constant Ka is [H+] [HCrO4−] / [H2CrO4].

Step 3 - Plug in Values from the Table

Ka = x * x / 0.078-x

Step 4 - Note that x is Related to pH and Calculate Ka

[H+] = 10^-pH.

Since x = [H+] and you know the pH of the solution,

you can write x = 10^-1.23.

It is now possible to find a numerical value for Ka.

Ka =  (10^-1.23))^2 / (0.078 - 10^-1.23) = 0.00347 / 0.0191156

Ka = 0.1815

4 0
3 years ago
No links right answers only!! 9recipitation like in the Arctic tundra.
erik [133]
The answer is. B hope it helps plz mark me a brainless plz
4 0
3 years ago
Read 2 more answers
What are some examples of monomers and oligomers?
aleksandr82 [10.1K]
<span>What are some examples of monomers and oligomers?
</span>Organic molecules, such as proteins, carbohydrates, lipids and nucleic acids, are made of simple subunits called monomers. <span>Plasticizers are </span>oligomeric esters widely used to soften thermoplastics such as PVC and <span>urethane acrylate </span>. 
<span>
</span><span>If a chemical compound accelerates and regulates metabolic reactions, which type of role does it play - structural or physiological? 
</span>I believe the function that it plays would be physiological since it focuses more on the regulation of the reactions inside the body.
7 0
3 years ago
Other questions:
  • Which of the following is NOT a physical property of matter?
    15·1 answer
  • Cuales son los tubos especializados de los riñones que filtran los desecjos de la sangre​
    6·1 answer
  • What is the theoretical Van’t Hoff factor for the following substances: HCL &amp; ethanol (CH3CH2OH)
    15·1 answer
  • Why is it important to keep the water on Earth pollution free? Explain.
    12·2 answers
  • A flask contains 0.100 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask.
    13·1 answer
  • Which pair shares the same empirical formula? (
    14·1 answer
  • EASY BUT I STILL NEED HELP
    8·2 answers
  • HELP ASAP PLS a 35.0 g block of copper is dropped into 450 grams of water
    11·1 answer
  • Please Help! Thank You
    12·1 answer
  • Draw the structure of the major organic product(s) for the following reaction between an acetylenic anion and an alkyl halide. (
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!