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Kruka [31]
3 years ago
12

Who is in 10th grade biology

Biology
1 answer:
Genrish500 [490]3 years ago
3 0
Looking for someone in 10th grade biology? How can I help you.
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When one magnesium atom and two chlorine atoms transfer electrons, magnesium loses two electrons, and each chlorine gains
bezimeni [28]

Answer:

The formation of magnesium chloride, MgCl2, is another example of ionic bonding. When magnesium reacts with chlorine, a magnesium atom loses two electrons and becomes a positively charged ion, Mg2+. At the same time, two chlorine atoms gain one electron each and become negatively charged chloride ions, Cl−.

8 0
2 years ago
To free the rock from atop the perch, you need a ____________ , which could take the form of a person or a lever to free the roc
andrew-mc [135]

Answer:

Option (D)

Explanation:

In terms of chemistry, a catalyst is usually defined as the substance that is commonly used in a reaction in order to increase the rate of reaction, without getting consumed. It helps in the reduction of activation energy.

In the given case, the lever or a person can be considered as a catalyst because both of these will increase the efficiency (or rate) in removing the rock from the top of the perch. Thus, the lever or the human will remain the same after the removal of rock as a catalyst can be recovered after the reaction.

Therefore, the correct answer is option (D).

5 0
3 years ago
The image shows a food web in an Arctic ecosystem.
babymother [125]
The answer is A, because the phytoplankton is the foundation of this food web. Without your foundation, "the building will begin to crumble".
3 0
3 years ago
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What are the names of four polysaccharides and what is required for their formation?
dem82 [27]
The four polysaccharides are glycogen, starch, cellulose, and chitlin.  You consume them. They are sometimes artificially made or produced by your body.
7 0
3 years ago
100 POINTS!!
alexgriva [62]

Answer:

Changes in gene expression

Explanation:

7 0
2 years ago
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