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Neko [114]
3 years ago
15

Describe the makeup of Earth’s atmosphere. How do solids get into the air?​

Chemistry
2 answers:
Alex17521 [72]3 years ago
5 0
Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements. Our atmosphere also contains water vapor. In addition, Earth's atmosphere contains traces of dust particles, pollen, plant grains and other solid particles.
Sergeeva-Olga [200]3 years ago
5 0

Answer:

The atmosphere of the earth refers to the gaseous envelope where various types of gases are present at a definite proportion. The major dominant gas is Nitrogen which is nearly 78%, next to this is the oxygen gas which is about 21% and Argon is present at about 1%. Some of the gases that are present in trace amount includes hydrogen. helium, carbon dioxide, ozone, methane, water vapor and many more. This composition of the atmosphere maintains the overall temperature of the earth by interacting with the incoming solar radiation.

There are certain solids that are very small and tiny particles found to be floating within the atmosphere. These are aerosol particles, dust particles, pollen and spores which are mainly emitted from the volcanic eruptions and sea spray. The aerosols are very fine suspended solid particles present abundantly in the atmosphere. They are originated both naturally and due to human activities. These fine particles help in maintaining a cooler temperature by decreasing the quantity of solar radiation emitted from the sun. These are so small that it can be lifted up easily into the higher atmosphere due to the wind factor.

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Match each part of the electrochemical cell with its function.
umka21 [38]

Hi!


The correct options would be:

1. Cathode - <em>reduction</em>

The cathode is the negatively charged electrode, and so has an excess of electrons. Cations (positively charged ions) are attracted to the cathode, and gain electrons to acquire a neutral charge. The process in which a gain of electron occurs is called reduction.


2. Anode - <em>oxidation</em>

The opposite occurs at the anode which is positively charged and attracts negatively charged ions, anions. These anions lose their electrons at the anode to acquire a neutral charge, and the process involving loss of electrons is known as oxidation.


3. Salt Bridge - <em>ion transport </em>

Salt bridge is a physical connection between the the anodic and cathodic half cells in an electrochemical cell and is a pathway that facilitates the flow of ions back and forth these half cells. Salt bridge is involved in maintaining a neutral condition in the electrochemical cells, and its absence would result in the accumulation of positive charge in the anodic cell, and negative charge in the cathodic cell.


4. Wire - <em>electron transport </em>

Wires have a universal role of being a pathway for the transport of electrons in circuit. This role is also the same in the wires involved in an electrochemical cells where they are used to transport electrons from the anodic half cell, and this electron transport results in the generation of electricity in the internal circuit of the electrochemical cell.


Hope this helps!

4 0
3 years ago
Which of the following most likely represents the specific gravity of granite? 2.7 3.0 3.3 5.5
stepladder [879]
Represent the gravity of granite is 2.7
4 0
3 years ago
Read 2 more answers
A solid cylinder having a diameter of 1.50 cm and a height of 5.15 cm has a mass of 95.56 g. Show the equations needed to calcul
Georgia [21]

Answer:

you can solve the rest of the equation. I only reduced it to that much to show you how to derive it

4 0
2 years ago
An Erlenmeyer flask contains 25.00 mL of 0.10 M HCl. What is the pH of the solution?
max2010maxim [7]
C=0.10 mol/l

pH=-lg[H⁺]

HCl = H⁺ + Cl⁻

pH=-lgc

pH=-lg0.10=1.0

pH=1.0
4 0
3 years ago
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Which state has a tundra and sub-arctic climate? a. Alaska c. North Dakota b. Montana d. None of the above Please select the bes
Sergio039 [100]
I would say Alaska because that's where most of the subarctic climate is found.
4 0
3 years ago
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