Why are there many visible craters on the moon but few on earth?

1 answer:

Crank2 years ago

3 0

From what I remember, the moon has little to no atmosphere, this means that if an asteroid came hurling towards it, there would be nothing between it and the asteroid, so it would just come crashing down to the moon. Whereas the Earth has a much thicker atmosphere than the moon and if a asteroid came hurling towards the Earth, it would most likely burn up or break apart in the atmosphere before it reached the earths surface.

I hope this helped! :-)

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What happen when a piece of silver metal is added to the copper sulphate solution

natta225 [31]

Answer:

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Montano1993 [528]

The end product will depend upon

a) the amount of the reagent taken

b) the final treatment of the reaction

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Figure 1

However if we have taken excess of methylmagnesium iodide which is Grignard's reagent followed by hydrolysis we will get different product

Figure 2

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3 years ago

A student sees an absorbance a=1.140 for his solution that has a concentration of c=1.50*10-4 m using 0.50 cm cuvette. what is t

777dan777 [17]

The molar extinction coefficient is 15,200 $M^{-1} cm^{-1}$ .

The formula to be used to calculate molar extinction coefficient is -

A = ξcl, where A represents absorption, ξ refers molar extinction coefficient, c refers to concentration and l represents length.

The given values are in required units, hence, there is no need to convert them. Directly keeping the values in formula to find the value of molar extinction coefficient.

Rewriting the formula as per molar extinction coefficient -

ξ = $\frac{A}{cl}$