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3 years ago

List the qualities of the atmosphere that makes it safe to live on this planet

1 answer:

8 0

One quality is the gravity, the gravity is important because we won't be flying into space. Another quality is that there is food and water provided for survival

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PLEASE ANSWER

Otrada [13]

Answer:

The answer is D) White Light!

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3 years ago

What is the outermost (highest-energy) shell of an element that contains electrons?

DENIUS [597]

Valence shell it contains the valence electrons e.g. the outermost electro

6 0

2 years ago

Which best describes the energy conversion that happens when hydroelectric

Sliva [168]

Answer:

"A hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity.

Explanation:

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4 0

2 years ago

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What does electro negativity value depend on ?

Akimi4 [234]

Answer:

An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity, the more an atom or a substituent group attracts electrons.

Explanation:

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3 years ago

Marcela dissolves 80.0 g of ammonium nitrate in 50.0 mL of water at room temperature and notes that the temperature of the solut

seraphim [82]

Answer: The correct answer is A

Explanation:

On addition of the ammonium nitrate to 50 ml of water the temperature decreases which means that reaction between the ammonium nitrate and water is an endothermic reaction.The value of $\Delta H$ is positive for an endothermic reactions.

$\Delta H>0$

Entropy is a degree of randomness of the system.

On addition of the ammonium nitrate to water ammonium nitrate break down into ions which means that entropy is increased.

$\Delta S>0$

$\Delta G=\Delta H-T\Delta S$ (Gibb's free energy)

Since, ammonium nitrate is getting dissolved in water which means that this reaction is spontaneous and $\Delta G$ of spontaneous reaction is negative that is:

$\Delta G$

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3 years ago

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