<h2>
<u>
CF4 </u>
is the one which is covalent compound</h2><h2 /><h2 /><h2>explanation</h2>
CF4 compound is formed between two non metal that is between carbon and fluorine and a covalent compound is formed when two non metal combine by sharing. electrons. CF4 has a strong bond strength due to the nature of carbon- fluorine bond.
The 3 common gases that give off reactions are Hydrogen sulfide, Carbon monoxide, Nitrogen oxides.
<h3>What are off reactions</h3>
Off reactions are defined as chemical reactions that occurs when something burns or during combustion of materials which gives off energy.
Some gases that give off reaction are:
- Hydrogen sulfide
- Carbon monoxide
- Nitrogen oxides
Note that these gases are mostly poisonous.
Therefore, the 3 common gases that give off reactions are Hydrogen sulfide, Carbon monoxide, Nitrogen oxides.
Learn more about off reactions here:
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The answer is microvilli.
<span>the lithosphere, which contains all of the cold, hard, solid rock of the planet's crust (surface), the hot semi-solid rock that lies underneath the crust, the hot liquid rock near the center of the planet, and the solid iron core (center) of the planet </span>the hydrosphere, which contains all of the planet's solid, liquid, and gaseous water,and the atmosphere, which contains all of the planet's air
