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3 years ago

Soaps feel slippery on our hands because they dissolve the oil on our skin decreasing friction this is because soaps contain

Chemistry

2 answers:

Ilya [14]3 years ago

7 0

Answer:

Explanation:

Oil or Lipid + Base lead to Glycerol and Soap

Neporo4naja [7]3 years ago

4 0

Answer:

alkali and hydrophiillc & hydrophobic molecules

Explanation:

Soaps are cleaning agents that are usually made by reacting alkali (e.g., sodium hydroxide) with naturally occurring fat or fatty acids. The reaction produces sodium salts of these fatty acids, which improve the cleaning process by making water better able to lift away greasy stains from skin, hair, clothes, and just about anything else

Soap breaks up the oil into smaller drops, which can mix with the water. It works because soap is made up of molecules with two very different ends. One end of soap molecules love water - they are hydrophilic. The other end of soap molecues hate water - they are hydrophobic.

Hydrophobic ends of soap molecule all attach to the oil. Hydrophilic ends stick out into the water. This causes a drop of oil to form:

These drops of oil are suspended in the water. This is how soap cleans your hands - it causes drops of grease and dirt to be pulled off your hands and suspended in water. These drops are washed away when you rinse your hands.

Hope this helps!

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A 52.0 mL portion of a 1.20 M solution is diluted to a total volume of 278 mL. A 139 mL portion of that solution is diluted by a

RoseWind [281]

Answer:

$C_3=0.125M$

Explanation:

Hello!

In this case, we can divide the problem in two steps:

1. Dilution to 278 mL: here, the initial concentration and volume are 1.20 M and 52.0 mL respectively, and a final volume of 278 mL, it means that the moles remain the same so we can write:

$V_1C_1=V_2C_2$

So we solve for C2:

$C_2=\frac{C_1V_1}{V_2}=\frac{52.0mL*1.20M}{278mL}\\\\C_2=0.224M$

2. Now, since 111 mL of water is added, we compute the final volume, V3:

$V_3=139+111=250mL$

So, the final concentration of the 139 mL portion is:

$C_3=\frac{139 mL*0.224M}{250mL}\\\\C_3=0.125M$

Best regards!

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3 years ago

_P4 + ____O2 → __P2O3<br><br> How do I balance this equation?

Murljashka [212]

Explanation:

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3 years ago

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How many atoms are in 17.0 moles of Pb?

Oksanka [162]

No. of atoms=mols*avagadros no.
N=n*No
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3 years ago

Where do you find a valence electron?

slamgirl [31]

Answer:

In chemistry, valence electrons are the electrons that are located in the outermost electron shell of an element.

Explanation:

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Is a gold necklace a element, compound, or a mixture

Akimi4 [234]

Answer:

It would be an element my dear.

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Pure gold is an element. That is, it is not a combination of other materials. However, gold used in jewelry is usually a “mixture”, called an alloy mixed with other metals to harden it, to change the color as in copper makes the pink or rose gold that is currently enjoying great polarity.

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2 years ago