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
Contact [7]
3 years ago
7

Why do water molecules and the materials dissolved in water move through the plasma membrane slowly ?

Chemistry
1 answer:
garik1379 [7]3 years ago
4 0

Nonpolar and small polar molecules can pass through the cell membrane, so they diffuse across it in response to concentration gradients. Carbon dioxide and oxygen are two molecules that undergo this simple diffusion through the membrane. The simple diffusion of water is known as osmosis.

You might be interested in
_KOH + _H₂PO4 → _K₂PO4 + _H₂O​
Hunter-Best [27]

Answer:

2KOH+H2PO4--K2PO4+4H2O

3 0
3 years ago
All the food chains in an ecosystem that are connected together form a ?
joja [24]

All food chain in an ecosystem that are connected to each other forms a food web....

Therefore the answer is food web

5 0
3 years ago
Read 2 more answers
How many mol of hydrogen in 2.8 mol of caffeine.
pochemuha
Empirical formula of caffeine is C₈H₁₀N₄O₂.

In 1 mol of caffeine we have 10 mol of hydrogen.
In 2,8 mol of caffeine we have x mol of hydrogen.

x = 2,8 mol * 10 mol / 1 mol = 28 mol

ANSWER: There are 28 mol of hydrogen.

:-) ;-)
5 0
3 years ago
Read 2 more answers
A manufacturing plant has been found guilty of polluting the nearby river. This is _______ pollution.
dusya [7]

Answer:

the answer would be C:  point source

Explanation:

because it specified the source of the pollution (manufacturing plant)

7 0
3 years ago
Read 2 more answers
One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transition that begins in the state w
4vir4ik [10]

Answer:

4

Explanation:

Relationship between wavenumber and Rydberg constant (R) is as follows:

wave\ number=R\times Z^2\frac{1}{n_1^2} -\frac{1}{n_1^2}

Here, Z is atomic number.

R=109677 cm^-1

Wavenumber is related with wavelength as follows:

wavenumber = 1/wavelength

wavelength = 253.4 nm

wavenumber=\frac{1}{253.4\times 10^{-9}} \\=39463.3\ cm^{-1}

Z fro Be = 4

39463.3=109677\times 4^2(\frac{1}{n_1^2} -\frac{1}{5^2})\\39463.3=109677\times 16(\frac{1}{n_1^2} -\frac{1}{5^2})\\n_1=4

Therefore, the principal quantum number corresponding to the given emission is 4.

6 0
3 years ago
Other questions:
  • The skeletal structure in line-angle (line-bond) mode of 2,3,3,5-tetramethylhexane is shown. Identify the number of hydrogen ato
    9·1 answer
  • 50 points and will mark brainiest!!!
    14·2 answers
  • Which is not the same as 5.63 <br> grams
    5·1 answer
  • What is insight learning?
    8·1 answer
  • Calculate the density of a material that has a mass of 52.457 g and a volume of 13.5 cm3.
    14·1 answer
  • What are the most elements of the periodic table?
    10·1 answer
  • Can someone help me with this, what even is this? I didn't even learn this
    8·1 answer
  • Please help ASAP! What mass of hydrogen is needed to produce 10 moles of ammonia (NH3)?
    6·1 answer
  • It exists between polar covalent molecules
    12·1 answer
  • Do only chemical reactions get colder/hotter?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!