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
Debora [2.8K]
3 years ago
9

This body system is where oxygen gas and carbon dioxide gas are exchanged in our body. *

Chemistry
2 answers:
nexus9112 [7]3 years ago
6 0

Answer:

The answer is the respiratory system

Explanation:

The function of the respiratory system is to move two gases. These two gases are called oxygen and carbon dioxide. Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them.

marusya05 [52]3 years ago
3 0
B.) respiratory system
You might be interested in
If a solution has a pH of 2, what is the hydroxide ion concentration?
murzikaleks [220]

Answer:

A

Explanation:

14=pH + pOH

pOH= 14 - 2

pOH= 12

pOH= -log[OH]

[OH]= 10^-12

=1×10^-12

5 0
1 year ago
ASAP
nevsk [136]

I’m pretty sure it’s the second answer B

5 0
2 years ago
How many particles of Na are there in 1.43g of a molecular compound with a Molar mass of 23g?
Olin [163]

Answer:

3.74 x 10²² particles

Explanation:

Given parameters:

Mass of compound  = 1.43g

Molar mass of compound  = 23g

Unknown:

Number of particles of sodium = ?

Solution:

To find the number of particles of Na in the compound, we need to obtain the mass of sodium from the total mass given;

          Mass of sodium  = \frac{molar mass of Na}{molar mass of compound} x mass of sample

                                      = \frac{23}{23}  x 1.43g

                                       = 1.43g

Now find the number of moles of this amount of Na in the sample;

          Number of moles  = \frac{mass}{molar mass} = \frac{1.43}{23}  = 0.062mole

Now;

                    1 mole of substance  = 6.02 x 10²³ particles

                       0.062 mole of substance  =  0.062 x 6.02 x 10²³ particles

                                                                     = 3.74 x 10²² particles

7 0
3 years ago
Help
Burka [1]
The Moon<span> moves </span>around<span> the </span>Earth in<span> an </span>approximately<span> circular </span>orbit<span>, going once </span>around<span>  </span>in approximately<span> 27.3 </span><span>days.  </span>The moon orbits quite fast: it moves about 0.5 degrees<span> per hour in the sky. So, its average movement in a day is around 13 degrees.   5 days x 13 degrees is approximately 65 degrees. </span>
4 0
2 years ago
Part D<br> Explain how your model is different from the model in the picture.
Ipatiy [6.2K]

Answer:

I am explain you in image

8 0
3 years ago
Other questions:
  • Compare and contrast comets and meteors. What are the impacts each might have on Earth?
    13·1 answer
  • How many grams of C6H12O6 are needed to be dissolved in water to make 100. grams of a 250. ppm solution?
    9·1 answer
  • Predict whether each of the following substances would be more soluble in water (polar solvent) or in a hydrocarbon such as hept
    9·1 answer
  • Plsz do solv this question hpl​
    13·1 answer
  • How many milliliters of a 0.8 M solution of citric acid would be needed to react with 15 grams of baking soda? Show your work.
    6·1 answer
  • A. Consider the following neutral electron configurations in which n has a constant value. Which configuration would belong to t
    10·1 answer
  • I smell onions.
    9·2 answers
  • Convert each of the measurements given to the new unit stated using the factor label method (dimensional analysis). Show all wor
    6·1 answer
  • 13. What is the photon energy associated with visible light with a wavelength of 4.25x10^-7 m?
    11·1 answer
  • The process of adding hydrogen to the double bonds in unsaturated fatty acids to extend the shelf-life of food products is calle
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!