3 years ago

What unit is used to count atoms and molecules?

Physics

1 answer:

murzikaleks [220]3 years ago

7 0

the answer in my opinion would be A

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Humans impact the Earth in good AND bad ways. A) True B) False

const2013 [10]

Answer:

True

Explanation:

yes we can see that we are helping animals but we create pollution which is very bad

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3 years ago

How is capacitance related to the distance between the plates of a capacitor?

svetlana [45]

Answer:C

Explanation: I studied, and C is correct

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3 years ago

How are the fiducial points of the Celsius and Fahrenheit scales similar?

taurus [48]

The fiducial points of the Celsius and the Fahrenheit temperature scales are the boiling and freezing points of pure water at 1 atm of pressure.

In short, Your Answer would be Option D

Hope this helps!

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3 years ago

What is the volume V of a sample of 4.00 mol of copper? The atomic mass of copper (Cu) is 63.5 g/mol, and the density of copper

rusak2 [61]

Answer : The volume of a sample of 4.00 mol of copper is $28.5cm^3$

Explanation :

First we have to calculate the mass of copper.

$\text{ Mass of copper}=\text{ Moles of copper}\times \text{ Molar mass of copper}$

$\text{ Mass of copper}=(4.00moles)\times (63.5g/mole)=254g$

Now we have to calculate the volume of copper.

Formula used :

$Density=\frac{Mass}{Volume}$

Now put all the given values in this formula, we get:

$8.92\times 10^3kg/m^3=\frac{254g}{Volume}$

$Volume=\frac{254g}{8.92\times 10^3kg/m^3}=2.85\times 10^{-2}L=2.85\times 10^{-2}\times 10^3cm^3=28.5cm^3$

Conversion used :

$1kg/m^3=1g/L\\\\1L=10^3cm^3$

Therefore, the volume of a sample of 4.00 mol of copper is $28.5cm^3$

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3 years ago

Read 2 more answers

The length is a fundamental quantity why

kupik [55]

There’s no picture and what’s the length?

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2 years ago