How many udders does a cow have

What type of element is Hydrogen? Where do you see hydrogen present?

PSYCHO15rus [73]

/~\ The correct answer is:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hydrogen is a chemical and is found in the sun and most of the stars, and the planet Jupiter is composed mostly of hydrogen. On Earth, hydrogen is found in the greatest quantities as water.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I hope this helps! /~\

8 0

3 years ago

Which of the following is not the same as 8,540 centigrams?

Dahasolnce [82]

8.54 Probably a little too late but, hey better late than never lol

8 0

3 years ago

Read 2 more answers

During the discussion of gaseous diffusion for enriching uranium, it was claimed that 235UF6 diffuses 0.4% faster than 238UF6. S

Kay [80]

Answer: The below calculations proves that the rate of diffusion of $^{235}UF_6$ is 0.4 % faster than the rate of diffusion of $^{238}UF_6$

Explanation:

To calculate the rate of diffusion of gas, we use Graham's Law.

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

$\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}$

We are given:

Molar mass of $^{235}UF_6=349.034348g/mol$

Molar mass of $^{238}UF_6=352.041206g/mol$

By taking their ratio, we get:

$\frac{Rate_{(^{235}UF_6)}}{Rate_{(^{238}UF_6)}}=\sqrt{\frac{M_{(^{238}UF_6)}}{M_{(^{235}UF_6)}}}$

$\frac{Rate_{(^{235}UF_6)}}{Rate_{(^{238}UF_6)}}=\sqrt{\frac{352.041206}{349.034348}}\\\\\frac{Rate_{(^{235}UF_6)}}{Rate_{(^{238}UF_6)}}=\frac{1.00429816}{1}$

From the above relation, it is clear that rate of effusion of $^{235}UF_6$ is faster than $^{238}UF_6$

Difference in the rate of both the gases, $Rate_{(^{235}UF_6)}-Rate_{(^{238}UF_6)}=1.00429816-1=0.00429816$

To calculate the percentage increase in the rate, we use the equation:

$\%\text{ increase}=\frac{\Delta R}{Rate_{(^{235}UF_6)}}\times 100$

Putting values in above equation, we get:

$\%\text{ increase}=\frac{0.00429816}{1.00429816}\times 100\\\\\%\text{ increase}=0.4\%$

The above calculations proves that the rate of diffusion of $^{235}UF_6$ is 0.4 % faster than the rate of diffusion of $^{238}UF_6$

3 0

3 years ago

The gas in an aerosol container is at a pressure of 3.50 atm at 24.0C. The caution on the container warns against storing it at

AVprozaik [17]

Answer:

4.34atm

Explanation:

The following data were obtained from the question:

P1 = 3.50 atm

T1 = 24°C = 24 +273 = 297K

T2 = 95°C = 368K

P2 =?

Using P1 /T1 = P2 /T2, we can obtain the new pressure as follows:

P1 /T1 = P2 /T2

3.5 / 297 = P2 / 368

Cross multiply to express in linear form:

297 x P2 = 3.5 x 368

Divide both side by the 297

P2 = (3.5 x 368) /297

P2 = 4.34atm

Therefore, the gas pressure in the container at 95°C will be 4.34atm

8 0

4 years ago

How many valence electrons does each of the following atoms have?

Zolol [24]

Which atoms? ~~~~~~~~~~~~~~~~~~~~~~~~~`

6 0

4 years ago