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e-lub [12.9K]
3 years ago
11

The atmosphere is composed of several gases. The gas which is present in the largest quantity is:

Chemistry
2 answers:
Kamila [148]3 years ago
8 0

Answer 1: Option(B) Nitrogen

Explanation:

The earth's atmosphere comprises of different gases which are Nitrogen(78%), plenty of Oxygen(21%), argon(0.9%) and remaining are the methane, gaseous oxides etc. So Nitrogen is present in largest quantity in the earth's atmosphere.

Answer 2: Option(D) Ozone

Explanation:

The Stratosphere is the second lowest layer of the earth. It contains the ozone which absorbs the UV rays coming form the sun because of which there is a rise in temperature than other layers.

Answer 3: Option(A) Heat from the earths core

Explanation:

The heat energy coming from the Sun heats the earth non-uniformly that results in the hot and cold area on the earth causes low and high air pressure.The Sun heats the earth core. When there is a hot weather the land near the sea becomes hot in comparison with the sea results in the hot wind flow from the sea.

slega [8]3 years ago
4 0
1. <span>B. Nitrogen is the greatest component of the gases in Earth's atmosphere

2. </span><span>D. Ozone absorbs ultraviolet radiation

3. I would guess A. heat from the Earth's core but I'm not completely sure</span>
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Answer these questions based on 234. 04360 as the atomic mass of thorium-234. The masses for the subatomic particles are given.
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The mass defect for the isotope thorium-234 if given mass is 234.04360 amu is 1.85864 amu.

<h3>How do we calculate atomic mass?</h3>

Atomic mass (A) of any atom will be calculated as:

A = mass of protons + mass of neutrons

In the Thorium-234:

Number of protons = 90

Number of neutrons = 144

Mass of one proton = 1.00728 amu

Mass of one neutron = 1.00866 amu

Mass of thorium-234 = 90(1.00728) + 144(1.00866)

Mass of thorium-234 = 90.6552 + 145.24704 = 235.90224 amu

Given mass of thorium-234 = 234.04360 amu

Mass defect = 235.90224 - 234.04360 = 1.85864 amu

Hence required value is 1.85864 amu.

To know more about Atomic mass (A), visit the below link:

brainly.com/question/801533

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