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Murljashka [212]
3 years ago
14

Can coal ever be truly a clean-burning fuel?

Biology
1 answer:
svetlana [45]3 years ago
8 0

Answer:

Yes it can

Explanation:

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Which of the following is a covalent compound?
V125BC [204]

Answer:

Water is a covalent compound.

Explanation:

covalent compounds are individual molecules characterized by the sharing of electrons between two or more atoms. Two atoms with similar electronegativity will not exchange an electron from their outermost shell; the atoms instead share electrons so that their valence electron shell is filled.

Example:

Examples of compounds that contain only covalent bonds are methane (CH4), carbon monoxide (CO), Water (H2O) and iodine monobromide (IBr).

Properties:

1. At room temperature and normal atmospheric pressure, covalent compounds may exist as a solid, a liquid, or a gas.

2. Covalent compounds do not exhibit any electrical conductivity, either in pure form or when dissolved in water.

3. Covalent compounds have lower melting and boiling points.

5 0
2 years ago
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Can a hypothesis be proven true? Why or why not?
VladimirAG [237]

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Upon analysis of the results, a hypothesis can be rejected or modified, but it can never be proven to be correct 100 percent of the time. For example, relativity has been tested many times, so it is generally accepted as true, but there could be an instance, which has not been encountered, where it is not true.

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2 years ago
Divergent faults form when tectonic plates _____. move away from one another stop moving crash into one another slide past each
AleksAgata [21]

Correct answer: A). Move away from one another

The divergent boundaries are formed when the tectonic plate move away from each other. It forms volcanic islands that occur when the plates move away in order to produce gaps that are filled by molten lava.

The divergent boundary contributes to the formation of seafloor spreading. When the plates that are made up of oceanic crust move away from each other, a crack in the ocean floor appears. Then the magma oozes out from the mantle to fill that crack that results in ocean ridges.

Hence, the correct answer would be option A.

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3 years ago
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Substance that makes a plant woody.
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I think it's stem of a plant.

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Where does a bacterial cell store its dna?
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Nucleoid region......
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