Chemistry, 06.03.2021 01:50 MadisonElle

Why might it be useful to determine the elements that a planet or moon is made up of?

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It’s useful because you will know what they are made of and you can use that information to compare to other moons or planets and study then to see if it can be lived or not lived on

Answer from: reyescoralys

It might be very useful to determine the elements that a planet or moon is made up of. To determine the element on the planet, the rock is picked up from the planet. It might be helpful in determining the atmosphere of the planet. Like the moon has no atmosphere.By knowing the composition of the planet, one is able to look out the possibility of life on the planet.

Explanation:

hope this helps

Answer from: Quest

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.

Answer from: Quest

answer : (a) volume of the gas = 8.67 × $10^{-3}$ l

(b) second virial coefficient b = -1.21226 l/mole

solution : given, t = 300k

p = 20atm

z = 0.86

n = 8.2 mmoles = 8.2 × $10^{-3}$ moles

r = 0.082 l atm/k/mol

find, (a) volume of gas and (b) second virial coefficient b at 300k.

formula used : $z=\frac{pv}{nrt}$

and $z=1+\frac{b}{v}$

(a) $z=\frac{pv}{nrt}$

$v=\frac{znrt}{p}$

= $\frac{0.86\times 8.2\times[tex]10^{-3}$ \times 0.082\times 300}{20}[/tex]

= 8.67 × $10^{-3}$ l

(b) $z=1+\frac{b}{v}$

$b=(z-1)v$

= (0.00867-1) × 8.659

= - 8.5839 l/mole

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