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deff fn [24]
3 years ago
12

What is a zone of weak, variable winds located at 30 degrees north and 30 degrees south?

Chemistry
1 answer:
timurjin [86]3 years ago
4 0

Answer:

Horse latitude, trade winds

Explanation:

  • The area of the low pressure or the calm consists of the variable light winds that blow near the equator are known to the marines as the doldrums and they form a circuital pattern near the earth atmosphere.
  • Forms at a center of the near the higher pressure systems called as the horse latitudes where the  trade winds at the surface are weak and variable and this zone is found generally in latitudes of the 30° North and South of the equator and move in an east to west direction.

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Determine whether each of the descriptions of matter describes a heterogeneous mixture, a homogeneous mixture, or a pure substan
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Answer: a. two substances present; two phases present  : Heterogeneous mixture

b. two substances present; one phase present : Homogeneous mixture

c. one substance present; one phase present : pure substance.

d. one substance present; two phases present: Heterogeneous mixture

Explanation:

A pure substance is a substance which contains definite composition of only one type of component. Hence, it cannot be separated by physical means.

Mixture is a substance which contains two or more than two types of components and they can be separated by physical means as well.

Homogeneous mixtures: It is a mixture that has uniform composition throughout the solution and the particle size or shapes are not different. There is no physical boundary between the dispersed phase and dispersion medium.

Heterogeneous mixtures: It is a mixture that has non-uniform composition throughout the solution and the particle size or shapes are also different.  There is a physical boundary between the dispersed phase and dispersion medium.

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3 years ago
Values for the molar mass of nitrogen, oxygen, and nitrogen dioxide
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Answer:

n=N/Na

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Explanation:

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Is mud a heterogeneous or homogeneous mixture?
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Explanation:

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125 cm3 of a solution contains 0.25 moles of the solute. What is the concentration of the solution?
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Answer:

Explanation:

125 cm3 -> 0.125 L

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