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Olin [163]
2 years ago
12

Our day is 24 hour long because that is the time it take to

Biology
1 answer:
raketka [301]2 years ago
8 0

For the earth to make a full rotation on its axis.

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What are some properties of carbon? Please help
lilavasa [31]

Answer:

Properties Of Carbon :

Explanation:

Carbon:

Symbol: C

Electronic Configuration: 2 , 4

Valency : 4 (Tetra-valency)

Occurrence in nature →Earth's crust → 0.02% in the form of minerals like carbonates, coal, petroleum.

In atmosphere -0.03% in carbon dioxide is ( gaseous form)

Properties of carbon:

  1. Carbon forms Covalent is bonding and Covalent compounds wwhich do not conduct electricity.
  2. Carbon has three  allotropes i.e Diamond, Graphite and Fullerenes.
  3. In diamond carbon atoms bonded together in tetrahedral lattice arrangement.
  4. In graphite carbon atoms are bonded together in sheets of hexagonal lattice.
  5. In Fullerenes ccarbon atoms are bonded together in spherical, tubular, or ellipsoidal forms.
  6. Carbon plays a major role in organic compounds.
  7. Carbon is a Tetravalency. (valency :4)
  8. So that  it is easily share the electrons so that  it gives a possibility of large number of compounds. Carbon compounds are also called as organic compounds. Carbon compounds are also called organic compounds.
3 0
3 years ago
How long can a human live without food
cestrela7 [59]
Three weeks is how long a human can live without food
5 0
3 years ago
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​Each year in the United States about how many children are abducted, sexually assaulted, and killed by sexual predators?
Mkey [24]

Answer:

150

Explanation:

Annually, About a hundred and fifty children in the United States are abducted, sexually assaulted, and killed by sexual predators

4 0
3 years ago
Can someone help me pls....<br><br> Describe the chemical structure of a carbohydrate?
Dafna1 [17]

Answer:

Carbohydrates consist of the elements carbon (C), hydrogen (H) and oxygen (O) with a ratio of hydrogen twice that of carbon and oxygen. Carbohydrates include sugars, starches, cellulose and many other compounds found in living organisms. In their basic form, carbohydrates are simple sugars or monosaccharides.

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7 0
3 years ago
In photosynthesis, light energy is harvested and used to generate
prohojiy [21]
All I can think of is glucose
5 0
3 years ago
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