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3 years ago

The following graph compares the greenhouse gas emissions from different forms of electricity production.

Chemistry

2 answers:

mamaluj [8]3 years ago

7 0

A.Nuclear power releases less greenhouse gases than other forms of power.

Juliette [100K]3 years ago

6 0

Answer is: A. Nuclear power releases less greenhouse gases than other forms of power.

Nuclear energy produces little air pollution.

Nuclear energy is the energy found in the nucleus of an atom.

It does not pollute the atmosphere or emitting the carbon emissions that cause global warming like other source of energy production.

Global warming is rise in the average temperature of the Earth's climate system.

Most often greenhouse gases are carbon dioxide and methane. They come from burning multiple substances: coal, petroleum, natural gas.

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kogti [31]

Answer:

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Explanation:

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3 years ago

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kumpel [21]

Answer:

B. Gas formation

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2 years ago

Read 2 more answers

Arrange the elements in decreasing order of first ionization energy.

just olya [345]

Answer:

The decreasing order of first ionization energy: Se > Ge > In > Cs

The decreasing order of first ionization energy: x > y > z

Explanation:

Ionization energy refers to the energy needed to completely pull out an electron from the valence shell of a neutral gaseous atom.

First ionization energy is the energy involved in the removal of first valence electron.

In the periodic table, down the group, as atomic radius of elements increases, the ionization energy decreases

Whereas, across a period, as atomic radius of elements decreases, the ionization energy increases.

PART (A):

Position of the given elements in the periodic table:

Indium (In): Group 13, period 5

Germanium (Ge): Group 14, period 4

Selenium (Se): Group 16, period 4

Caesium (Cs): Group 1, period 6

Thus, the increasing order of atomic radius: Se < Ge < In < Cs

Therefore, the decreasing order of first ionization energy: Se > Ge > In > Cs

PART (B):

Given elements:

element x: radius = 110 pm

element y: radius = 199 pm

element z: radius = 257 pm

Thus, the increasing order of atomic radius: x < y < z

Therefore, the decreasing order of first ionization energy: x > y > z

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3 years ago

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As a comet gets closer to the sun, the ice on the surface of the nucleus begins turning into gas, forming a cloud known as the coma. ... Since comet tails are shaped by sunlight and the solar wind, they always point away from the sun.

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