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AURORKA [14]
1 year ago
9

Which fact is most important in causing phospholipids to behave as they do in water?.

Chemistry
2 answers:
nevsk [136]1 year ago
8 0

Answer:    Water molecules make hydrogen bonds

Explanation:            The hydrogen bonds in water exclude the nonpolar tails of phospholipids, forcing the molecules into a bilayer

Ulleksa [173]1 year ago
6 0

Answer:

Water molecules make hydrogen bonds

Explanation:

This happens when the hydrogen bonds in water exclude the nonpolar tails of phospholipids, forcing the molecules into a bilayer.

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Which sentence best describes an igneous intrusion
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A sample of metal has a mass of 5. 2 g and absorbs 20. 0 j of energy as it is heated from 30. 0°c to 40. 0°c. What is the identi
kiruha [24]

The identity of the metal is copper.

<h3>What is specific heat?</h3>

The amount of energy needed to raise the temperature of one gram of a substance by one degree Celsius.

Using the formula of specific heat

H = mcdT

Where, H = Heat absorbed

m = mass of the metal

c = specific heat capacity of the metal

dT = temperature change

Putting the values in the equation

20 J = 0.0052 Kg × c × ( 40.0°C - 30.0°C)

c = 20 J/0.0052 Kg × ( 40.0°C - 30.0°C)

c = 385 JKg-1°C-1

Thus, the metal is copper.

Learn more about specific heat

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6 0
1 year ago
Which statement concerning the hydrated hydrogen ion is incorrect? (a) Although we often represent hydrogen ions as bare protons
Harrizon [31]

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An hydrate can be described as a substance that contains water or with an hydrogen bonded water molecule group.

The hydrate group doesn't necessarily have a fixed formula.

5 0
3 years ago
A rock that has a mass if 180 grams dropped in a graduated cylinder that was originally filled to 52ml; it now reads 62ml. What
Vlad [161]

Answer:

<h2>18 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

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volume = 62 - 52 = 10 mL

From the question we have

density =  \frac{180}{10}  \\

We have the final answer as

<h3>18 g/mL</h3>

Hope this helps you

5 0
3 years ago
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