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slava [35]
3 years ago
6

A chemical bond formed by transfer of electrons

Biology
1 answer:
Vaselesa [24]3 years ago
8 0
An ionic<span> bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged </span>ions<span>. </span>Ionic<span> bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.</span>
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Explain Mercury is the planet closest to the Sun. Why does it get so cold at night?
alexdok [17]

Answer/Explanation: On Mercury temperatures can get as hot as 430 degrees Celsius during the day and as cold as -180 degrees Celsius at night.

Mercury is the planet in our solar system that sits closest to the sun. The distance between Mercury and the sun ranges from 46 million kilometers to 69.8 million kilometers. The earth sits at a comfy 150 million kilometers. This is one reason why it gets so hot on Mercury during the day.

The other reason is that Mercury has a very thin and unstable atmosphere. At a size about a third of the earth and with a mass (what we on earth see as ‘weight’) that is 0.05 times as much as the earth, Mercury just doesn’t have the gravity to keep gases trapped around it, creating an atmosphere. Due to the high temperature, solar winds, and the low gravity (about a third of earth’s gravity), gases keep escaping the planet, quite literally just blowing away.

Atmospheres can trap heat, that’s why it can still be nice and warm at night here on earth.

Mercury’s atmosphere is too thin, unstable and close to the sun to make any notable difference in the temperature.

Space is cold. Space is very cold. So cold in fact, that it can almost reach absolute zero, the point where molecules stop moving (and they always move). In space, the coldest temperature you can get is 2.7 Kelvin, about -270 degrees Celsius.

Sunlight reflected from other planets and moons, gases that move through space, the very thin atmosphere and the surface of Mercury itself are the main reasons that temperatures on Mercury don’t get lower than about -180 °C at night.

6 0
3 years ago
Telophase is accompanied by the division of cytoplasm between two daughter cells . What is this process called
Dimas [21]

Answer:

Cytokinesis

Explanation:

Cytokinesis is similar to telophase. The cell devides it cytoplasm into two pieces which creates two daughter cells.

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Answer: its to overturn such resiliency

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Organism in an eniornment can compte for food
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Perhaps solvent and solute
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