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vovangra [49]
3 years ago
15

Feeling the heat when touching a hot piece of metal is an example of

Chemistry
1 answer:
Semmy [17]3 years ago
3 0
The answer is A, I’m pretty sure, I remember learning this a few years ago, I hope you get it right :)
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Crude oil pumped out of the ground may be accompanied by formation water, a solution that contains high concentrations of nacl a
djverab [1.8K]

solution:

the change in the boiling point is given as,

dTbp =2.30°c

elevation constant for the solvent is given by,

kb=0.512°c/m

molality=\frac{dTBP}{KB\times m}\\=\frac{2.30}{0.512c/m}

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8 0
3 years ago
It is considered a DUI if the driver’s Blood Alcohol Content level is at or above .08.
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5 0
3 years ago
Which equation shows how wavelength is related to velocity and frequency?
Nataly_w [17]

Answer:

The correct option is the option;

\lambda = \dfrac{v}{f}

Explanation:

The wavelength of a wave is the distance between two successive crests of the wave

Therefore, the wavelength, λ, is given by the fraction of the velocity, <em>v</em>, of the wave divided by the frequency, <em>f</em>, (the number of cycles that pass through a point) of the wave

Mathematically, we have;

The \ wavelength, \ \lambda = \dfrac{The \ wave \ velocity, \ v}{The \ wave \ frequency, \ f}

\lambda = \dfrac{v}{f}

4 0
3 years ago
How many moles of sodium cyanide are needed to react completely with 2.6 moles of sulfuric acid
Tanya [424]

7.2 mol NacN



Is the answer



Hope i helped <3

4 0
3 years ago
the most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of chalcopyrite must be mined to
lara [203]
<span>0.650 kg... I think, 
But what are the answer choices?</span>
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