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7nadin3 [17]
3 years ago
5

URGENT HELP PLEASE balance equation !20 points!

Chemistry
1 answer:
yKpoI14uk [10]3 years ago
5 0
Au^2S^3+ 3H^2 = 2Au + 3H^2S
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pochemuha
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1) D

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3 years ago
How many seconds are there in two 24 hour days?
Oduvanchick [21]

Answer:

86,400 seconds in a day.

Explanation:

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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.

4 0
3 years ago
A sample from one of Earth's oceans has a salinity of 34. What is the concentration of dissolved salts in this sample of seawate
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Answer:

Concentration of dissolved salts = 34,038.76 ppm

Explanation:

Given:

Salinity of ocean water = 34

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1g/l = 1001.14 ppm

Concentration of dissolved salts = 1001.14 ppm x 34

Concentration of dissolved salts = 34,038.76 ppm

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3 years ago
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Clouds are a source of Infrared Radiation. When cloud coverage increases, the infrared radiation also increases. So the clouds basically act as space heaters. This emits energy towards the ground, which is what makes cloudy nights warmer. While with clear sky’s all the heat from the day just escapes back into the atmosphere so the temperatures will be colder.
6 0
3 years ago
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