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Art [367]
3 years ago
8

Why are metals good conductors of electricity but covalent compounds are poor conductors

Biology
1 answer:
Nataly [62]3 years ago
5 0
The electrons in the outermost shell of the covalent compounds are shared by nearby atoms. As there are no free electrons for conducting electricity, the covalent compounds are perfect insulators at absolute zero. As the temperature increases, some electrons move from valence band to conduction band. This gives rise to conductivity. But as the numbers of charge carriers are very low, covalent compounds are poor conductors. On the other hand metals are good conductors cause of their bonding. Metallic bonding consists of a sea of electrons rather than discreet bonds. The free electrons are able to move freely. Since electricity and heat need electrons to move, the bonding promotes conductivity.
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Building a Macromolecule Virtual Lab Instructions: Complete the Building a Macromolecule Virtual Lab from the lesson assessment
Bumek [7]

Answer:

By bonding with each other.

Explanation:

Larger macromolecules are formed from smaller macromolecules by making bonds with each other. carbohydrate is a macromolecule which is formed from glucose which is a micromolecule. Proteins is also a macromolecule composed from amino acids while lipid is also a macromolecule that are formed from fatty acids. These small micromolecules join together forming covalent bonds with each other.

4 0
3 years ago
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Your teacher describes an organism that digests its food externally before absorbing it. You also find out that this organism ca
Aliun [14]

According to the context, fungi is an organism that digests its food externally before absorbing it and it cannot move.

<h3>What are fungi?</h3>

They are living beings belonging to the fungi kingdom: molds, yeasts and mushrooms.

These lack mobility and senses, like plants, and they consume available organic matter (heterotrophic nutrition).

Therefore, we can conclude that according to the context, fungi is an organism that digests its food externally before absorbing it and it cannot move.

Learn more about fungi here: brainly.com/question/10499247

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5 0
2 years ago
g In transcription, the 3'-hydroxyl group of the growing RNA strand: Group of answer choices NONE OF THESE binds to the 5' ribos
Tatiana [17]

Answer:

attacks the outermost phosphorous group of the incoming nucleotide.  

Explanation:

Transcription is the biological process where RNA is formed. As you may already know, RNA is an extremely important nucleic acid for genetic processes and the production of proteins. The transcription has three steps that are called start, elongation and end. In the elongation phase, the RNA strand is growing, at this time, RNA polymerase, which is the enzyme responsible for RNA elaboration, places the nucleotides, in the RNA strand, in the 5' - 3' direction. This enzyme causes the hydroxyl, which makes up the nucleotide at the 3' end of the forming RNA, to attack the phosphorus present in the incoming  ribonucleotide.

8 0
3 years ago
What would MOST LIKELY happen to the grass if most of the fungi and bacteria die?
poizon [28]
The grass would probably not live!
4 0
3 years ago
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likoan [24]

Answer:

Among the seven characteristics in life, the one should be sensitivity. It is where living organisms detect and react to stimulus or changes to the environment.

Specifically among plants, this change is called a tropic response, or tropism for short. Plants reacts to aspects like light, gravity, or water.

This response is controlled by a plant hormone called auxin. Auxin is produced at the tip of the plant, and they diffuse among the plant. The auxin accumulates at the side of the plant that doesn't receive as much sunlight, and auxin can stimulate its growth on that side so the plant bends. That's how a plant bending works.

Anyways, the answer to the question should be sensitivity.

7 0
3 years ago
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