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RSB [31]
3 years ago
8

Which of the following is the best example of an object absorbing light? A black sweater in the sun

Chemistry
1 answer:
Lena [83]3 years ago
7 0
The answer would be A
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Describes two uses of surfactants at least one must be something that was not described in the passage
Morgarella [4.7K]

Answer:

We don't have the passage.  A random sampling of surfactant uses includes:

  • removal of oily materials from objects (clothes and dishes)
  • forms remarkable structures called bubbles
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Explanation:

The structure of a surfactant makes one end of a molecule hydrophilic and the other end hydrophobic.  In water, they self-assemble into micelles, an arrangement in which the hydrophobic ends align towards the center, and the hydrophilic ends are pointed outwards to the water.  This self-assembly is apparant when bubbles are made.  The  molecules quickly align themselves such that the hyrophilic ends are oriented inwards towards a thin layer of water and the hydrophobic ends are pointed outward to the air.  This arrangement allows a mono-molecular sphere of water molecules to remain stable enough to float, reflect light, and please.  These same properties allow the inverse to occur.  Soap molecules surround a hydrophobic mass (e.g., the hamburger grease on your shirt) and solubilize it into small micelles which are then carried away in the surrounding water.

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2 years ago
How many total electrons can the p orbitals hold?<br> A. 6<br> B. 2<br> C. 10<br> D. 3
mars1129 [50]

Answer:

A. 6

Explanation:

hope it helps

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3 years ago
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What are formed when sodium ions and chlorine ions combine to produce nacl?
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Balance the following reaction:
kvv77 [185]
  • C_5H_8+13/2O_2—»5CO_2+4H_2O

Balanced one

  • 2C_5H_8+13O_2—»10CO_2+8H_2O

Moles of Pentyne

  • Given mass/Molarmass
  • 34/68
  • 0.5mol

Moles of H_2O

  • 8/2(0.5)
  • 4(0.5)
  • 2mol

1mol releases 241.8KJ

2mol releases 241.8(2)=483.6KJ

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What is the cell membrane?
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the semipermeable membrane surrounding the cytoplasm of a cell.

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