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o-na [289]
2 years ago
6

The small flag indicating wind direction on a station weather plot points in the direction that the wind is going.

Chemistry
2 answers:
Andrew [12]2 years ago
5 0
False is the true answer
Gnoma [55]2 years ago
3 0

Answer:

False

Explanation: The wind's direction is shown by a long shaft. it will point to the direction from which direction the wind is blowing.

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Name the process occurring at B,and explain what results from it
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B comes before C in an alphabet,and after A:)

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3 years ago
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Why do "super glue" adhesives bond to skin?
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It bonds to skin because
solid polymer requires the presence of water to get things started, be it in the air or on your skin. Without a little moisture, SuperGlue can't bond anything. This explains why the glue is so good at sticking fingers together.
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3 years ago
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The vapor pressure of pure pentane and pure hexane are 425 torr and 151 torr respectively. equal moles of pentane and hexane are
nadezda [96]

The mole fraction of pentane in the vapor is 0.291

Vapour pressure rises with temperature and is a measurement of a substance's propensity to transform into a gaseous or vapour state. The boiling point of a liquid is the temperature at which the pressure exerted by its surroundings equals the vapour pressure present at the liquid's surface.

The number of moles of a particular component in the solution divided by the overall number of moles in the sample solution is known as the mole fraction.

Using the formula for vapour pressure,

vapour pressure = P^{}°_{hex} × X_{hex} + P^{}°_{pen} × X_{pen}

vapour pressure = 151 ×  (1-X_{pen}) + 425 × X_{pen}

240 = 151 - 151X_{pen} + 425X_{pen}

240 - 151 = -  151X_{pen} + 425 X_{pen}

89 = 274 X_{pen}

\frac{89}{274} = X_{pen}

0.291 = X_{pen}

Therefore,  the mole fraction of pentane in the vapor is 0.291

Learn more about vapour pressure here;

brainly.com/question/25699778

#SPJ4

3 0
1 year ago
Off the top of your head (Mini Quiz) <br><br>What is the chemical composition of Mercury (the metal)
DIA [1.3K]

Symbol: Hg

Made of  hydrargyrum

Atomic number: 80

Atomic weight: 200.59

Poor conductor if heat and an ok conductor for electricity. Primarily used for many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents.


Hope it helps!


4 0
3 years ago
What is the pOH of a base with a OH- concentration of 0.0500 x 10-11 M? PLEASEEEEEE ASAP
Ksivusya [100]

Answer:

poH= -log(oh^-)

= - log (0.500* 10^-11)

= =- log 0.5 + log (10^-11)

= -( -0.30 +(-11))

=+ 11.3

4 0
3 years ago
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