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
Mazyrski [523]
3 years ago
10

Describe how phospholipids form a barrier between water inside the cell and water outside the cell.

Chemistry
2 answers:
marusya05 [52]3 years ago
3 0

The head of the phospholipids molecule is attracted to water, the tail repels water

photoshop1234 [79]3 years ago
3 0

the head of the phospholipids molecules attracted to water, the tail repels water

You might be interested in
When you measure the temperature of hot soup you're measuring the
mafiozo [28]

Answer:

Amount of Thermal Energy

Explanation:

7 0
2 years ago
Read 2 more answers
(BRAINLIEST)<br> Which of the compounds are used to reduce acidity of soil
Luda [366]

Explanation:

Limestone acts as a soil acid neutralizer and consists of eithercalcium and magnesium carbonate orcalcium carbonate. These are called dolomitic limestone and calciticlimestone respectively

7 0
3 years ago
Suppose that 0.48 g of water at 25 ∘ C condenses on the surface of a 55- g block of aluminum that is initially at 25 ∘ C . If th
mamaluj [8]

Answer:

49^oC

Explanation:

At 25^oC, the heat of vaporization of water is given by:

\Delta H^o_{vap} = 43988 J/mol\cdot \frac{1 mol}{18.016 g} = 2441.6 J/g

The water here condenses and gives off heat given by the product between its mass and the heat of vaporization:

Q_1 = \Delta H^o_{vap} m_w

The block of aluminum absorbs heat given by the product of its specific heat capacity, mass and the change in temperature:

Q_2 = c_{Al}m_{Al}(t_f - t_i)

According to the law of energy conservation, the heat lost is equal to the heat gained:

Q_1 = Q_2 or:

\Delta H^o_{vap} m_w = c_{Al}m_{Al}(t_f - t_i)

Rearrange for the final temperature:

\Delta H^o_{vap} m_w = c_{Al}m_{Al}t_f - c_{Al}m_{Al}t_i

We obtain:

\Delta H^o_{vap} m_w + c_{Al}m_{Al}t_i = c_{Al}m_{Al}t_f

Then:

t_f = \frac{\Delta H^o_{vap} m_w + c_{Al}m_{Al}t_i}{c_{Al}m_{Al}} = \frac{2441.6 J/g\cdot 0.48 g + 0.903 \frac{J}{g^oC}\cdot 55 g\cdot 25^oC}{0.903 \frac{J}{g^oC}\cdot 55 g} = 49^oC

6 0
3 years ago
Which of the following best defines velocity?
Lina20 [59]

Answer: D

Explanation:

Because velocity is speed

8 0
3 years ago
Read 2 more answers
Which would most easily form negative one ions.
irinina [24]

Answer:

Cl

Explanation:

chlorine (2,8,7) is a non metal with highest electronegativity. Hence, it is most likely to form a negative ion with charge −1.

I hope it helps you

8 0
3 years ago
Other questions:
  • how many moles of calcuim oxide are needed to react with an excess of water to form 370g of calcuim hydroxide
    7·1 answer
  • A piece of gold jewelry weighs 11.54 g and has a volume of 0.675 cm3. The jewelry contains only gold (density = 19.3 g/cm3) and
    15·1 answer
  • A sample of Freon-12 (CF2Cl2) occupies 25.5 L at 298 K and 153.3 kPa. Find its volume at STP.
    9·1 answer
  • How does the way a buffer stabilizes ph during addition of acid differ from the way the same buffer stabilizes ph during additio
    6·2 answers
  • The smallest part of an element that can combine with other elements is an ________.
    7·2 answers
  • In a reversible reaction, chemical equilibrium is attained when the (A) rate of the forward reaction is greater than the rate of
    6·1 answer
  • Name the following chemical compound. NaBr
    12·2 answers
  • How many moles of NaOH must be dissolved in 1.00 L of water to make NaOH (aq) with a pH of 12.2?
    11·1 answer
  • PLEASE HELPP!!!!
    6·1 answer
  • 9. Identify which properties of each of the following elements make them ideal for their uses. KIU A (a) copper and aluminum for
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!