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Digiron [165]
3 years ago
8

The cell membrane is (blank) permiable. This means that (blank)

Chemistry
1 answer:
bekas [8.4K]3 years ago
5 0
The cell membrane is selective permiable. This means that only certain things can enter the cell.
You might be interested in
The substance that is doing the dissolving is referred to as?
ella [17]

Answer:

hi! I'm pretty sure your answer is solvent!

Explanation:

not 100% sure but I looked it up on google. solvent does the dissolving, solute is what is being dissolved, and a solution is the solvent + the solute. hope this helped!

7 0
3 years ago
Which segement of the heating curve shown above represents an increase in the potential energy, but no change in the kinetic ene
Ede4ka [16]

Answer: Option (b) is the correct answer.

Explanation:

Kinetic energy is defined as the energy obtained by the molecules of an object due to their motion.

Also, it is known that kinetic energy is directly proportional to temperature.

Mathematically,       K.E = \frac{3}{2}kT

where,             T = temperature

Whereas potential energy is defined as the energy obtained by an object due to its position.

Mathematically,      P.E = mgh

where,             m = mass

                        g = acceleration due to gravity

                        h = height

Therefore, in the given curve when temperature remains constant then kinetic energy of molecules will also remain.

Hence, we can conclude that the segment QR represents an increase in the potential energy, but no change in the kinetic energy.

7 0
3 years ago
A student sees a change in mass in the lab when mixing two chemicals what is a possible explanation?
Hitman42 [59]

Answer:

The mixing of two chemicals may result in the production of a gas which is lost to the air. This will reduce the mass of the chemical mixture, because mass is being lost in a gaseous form.

4 0
3 years ago
What is some difference between a galvanometer and an electric motor?
12345 [234]
Galvanometer:
its an instrument for detecting small electric currents.
Electric motor:
its an electrical machine that converts electrical energy into mechanical energy.
4 0
3 years ago
Consider the following chemical reaction: CO (g) + 2H2(g) ↔ CH3OH(g) At equilibrium in a particular experiment, the concentratio
boyakko [2]

Answer:

The concentration of CH₃OH in equilibrium is [CH₃OH] = <em>2,8x10⁻¹ M</em>

Explanation:

For the equilibrium:

CO (g) + 2H₂(g) ⇄ CH₃OH(g) keq= 14,5

Thus:

14,5 = \frac{[CH_{3}OH]}{[CO][H_{2}]^2}

In equilibrium, as [CO] is 0,15M and [H₂] is 0,36M:

14,5 = \frac{[CH_{3}OH]}{[0,15][0,36]^2}

Solving, the concentration of CH₃OH in equilibrium is:

<em>[CH₃OH] = 0,28M ≡ 2,8x10⁻¹ M</em>

I hope it helps!

8 0
3 years ago
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