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
dem82 [27]
3 years ago
8

What is the main function of the cell membrane in an animal cell?

Chemistry
2 answers:
Paladinen [302]3 years ago
5 0

Answer:

A cell's plasma membrane, also known as the cell membrane, provides protection. It also maintains a constant atmosphere within the cell, and the membrane serves a variety of purposes. The first is to transport nutrients into the cell, and the second is to transport toxic compounds out

Explanation:

gavmur [86]3 years ago
3 0
The control what comes in and out of the cell
You might be interested in
Structure of 4-isopropyl-2,4,5-triethylheptane
SIZIF [17.4K]

Answer:

See the attached file

Explanation:

4 0
3 years ago
What's the charge on Ni in the compound NiCi3? *
ss7ja [257]

Answer:

+3

Explanation:

Chlorine is anion with a -1 charge. But they are three chlorine atoms.

-1 * 3 = -3

So they have a -3 charge.

So to balance the compound, the nickel has to be a cation with a +3 charge.

-3 + 3 = 0

Furthermore, a chemical bond always has a 0 charge. Remember that.

Hope it helped! Rate my answer a 5 star if correct.

8 0
3 years ago
Determine which of the following pairs of reactants will result in a spontaneous reaction at 25°C. None of the above pairs will
Alla [95]

Answer:

Only Fe^{3+}+Mg gives spontaneous reaction.

Explanation:

A redox reaction will be spontaneous if standard reduction potential (E^{0}) of the reaction is positive. Because it leads to negative standard gibbs free energy change (\Delta G^{0}), which is a thermodynamic condition for spontaneity of a reaction.

E^{0}=E^{0}(reduction)-E^{0}(oxidation)

Where E^{0}(reduction) and E^{0}(oxidation) represents standard reduction potential of reduction half cell and standard reduction potential of oxidation half cell.

(1) Oxidation:         Mg-2e^{-}\rightarrow Mg^{2+} ;  E_{Mg^{2+}\mid Mg}^{0}=-2.38V

Reduction:         Fe^{3+}+3e^{-}\rightarrow Fe ; E_{Fe^{3+}\mid Fe}^{0}=-0.04V

So, E^{0}=E_{Fe^{3+}\mid Fe}^{0}-E_{Mg^{2+}\mid Mg}^{0}=(-0.04+2.38)V=2.34V

Hence this pair will give spontaneous reaction.

(2) Similarly as above, E^{0}=E_{Pb^{2+}\mid Pb}^{0}-E_{Au^{+}\mid Au}^{0}=(-0.13-1.69)V=-1.82 V

Hence this pair will give non-spontaneous reaction.

(3) Similarly as above, E^{0}=E_{Ag^{+}\mid Ag}^{0}-E_{Br_{2}\mid Br^{-}}^{0}=(0.80-1.07)V=-0.27 V

Hence this pair will give non-spontaneous reaction.

(4)  Similarly as above, E^{0}=E_{Li^{+}\mid Li}^{0}-E_{Cr^{3+}\mid Cr}^{0}=(-3.04+0.74)V=-2.30 V

Hence this pair will give non-spontaneous reaction.

6 0
3 years ago
Most matter is made up of _____, rather than single _____.
bixtya [17]

Answer:

molecules, elements

Explanation:

molecules are a mix of elements

7 0
2 years ago
the purpose of the ____ system prevent foreign substances from entering the body and to attack foreign substances that are in th
Ratling [72]
Immune System is the answer.
7 0
3 years ago
Other questions:
  • Which of the following is the flow of electrons through a wire or a conductor
    10·2 answers
  • Keeping the number of moles constant, what is the final pressure in atm if the temperature was cooled from -91.5°C to -239°C, th
    8·1 answer
  • Which of the following changes to a pipe would increase the conductance by a factor of 12?
    10·1 answer
  • Name the Ionic Compound ​
    12·1 answer
  • Suppose 4.2 mol of oxygen and 4.0 mol of NO are introduced to an evacuated 0.50-L reaction vessel. At a specific temperature, th
    7·2 answers
  • Calculate the amount of CO2 produced when 1.00 mole of propane (C3H8) is burned in the presence of 1.00 mole of oxygen.
    12·1 answer
  • How can one separate and collect the solvent from a salt solution​
    7·1 answer
  • Which of the following is not a magnetic material A cobalt B iron C nickel D plastic E steel
    15·1 answer
  • I will give brainliest. 1. A spiderweb and a Kevlar jacket have some obvious differences. Which property is similar between the
    14·1 answer
  • Write an experiment to show the process of rusting
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!