4 years ago

Which of earths spheres contains most of its mass?

Chemistry

2 answers:

zysi [14]4 years ago

8 0

The geosphere is about 99.94% of Earth's mass, so C is the answer.

solong [7]4 years ago

5 0

Geosphere. hope this helps

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How many more valence electrons does carbon need to have a full outer valence shell?

AveGali [126]

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4 years ago

How many atoms are in 5.7 moles of copper atoms?

pickupchik [31]

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4 years ago

The equilibrium constant for the formation of ammonia from nitrogen and hydrogen is 1.6 × 102. what is the form of the equilibri

Nimfa-mama [501]

Answer: The expression for equilibrium constant is $\frac{[NH_3]^2}{[H_2]^3[N_2]}$

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For a general reaction:

$aA+bB\rightleftharpoons cC+dD$

The equilibrium constant is written as:

$k_c=\frac{[C]^c[D]^d}{[A]^a[B]^b}$

Chemical reaction for the formation of ammonia is:

$N_2+3H_3\rightleftharpoons 2NH_3$

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Expression for $k_c$ is:

$k_c=\frac{[NH_3]^2}{[H_2]^3[N_2]}$

$1.6\times 10^2=\frac{[NH_3]^2}{[H_2]^3[N_2]}$

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3 years ago

Each diagram below represents the nucleus of an atom. How many different elements are represented by the diagrams

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If the question is multiple choice the answer would be:
2) 2

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Answer:

Explanation:

Im pretty sure hope this helps

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