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Lana71 [14]
3 years ago
10

Hii please help me...

Biology
2 answers:
Maru [420]3 years ago
8 0
Where’s the question?
zzz [600]3 years ago
3 0
The Earth spinning on its axis is what causes day and night. when the Earths surface has direct sunlight from the sun it is day time. When the Earths surface is away from the sun it gets indirect sunlight causing it to be night time. may I have the brainliest ?!!
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1.what did magnesium and oxygen atoms had to do to bond ?
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1. Magnesium and oxygen atoms bond to form an ionic compound; this is evident because one forms a cation and the other an anion. When an ionic compound is formed, one atom "steals" an electron (or electrons) from another. In this case, an oxygen atom (which is pretty electronegative by the way) "steals" 2 electrons from a magnesium atom. The resulting oxygen anion and magnesium cation attract one another to form a bond (more specifically, an ionic one).

2. The oxygen atom needed two sodium atoms to bond because it needs two additional electrons to achieve a stable octet of electrons. 1 sodium atom provides 1 additional electron after it is "stolen" by oxygen, so 2 sodium atoms are needed in total to form the bond.

3. The magnesium atom needed two fluorine atoms to bond because it needs to lose two electrons to achieve a stable configuration/octet of electrons. 1 fluorine atom "steals" one electron, so 2 are needed in total.

Happy Holidays!

7 0
3 years ago
The molecules in the food we eat contain chemical energy stored in chemical bonds. Which statement BEST explains how this energy
Darina [25.2K]

Answer:

I this this is the answer hope it helps :)

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D. Chemical bonds in food molecules are broken, releasing energy and allowing cells to use the energy to make ATP.

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Hornless (H) cattle is dominant over horned (h). A homozygous harnless bull is mated with a homozygous horned cow. What will be
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