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Bezzdna [24]
2 years ago
15

How do living organisms use nitrogen

Chemistry
1 answer:
hoa [83]2 years ago
8 0

Answer:

it produces amino acids and proteins. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.

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How many hydrogen atoms are found in 3H2CO3?
Fiesta28 [93]

Answer:

6

Explanation:

The number of hydrogen atoms in the given compound is 6 atoms.

  Given compound is:

              3H₂CO₃

An atom is the smallest indivisible particles of an element.

  In the compound;

             3H₂CO₃

          Elements          Number of atoms

               H                       3(2)  = 6

               C                       3(1)   = 3

               O                       3(3)    = 9

The number of hydrogen atoms in the compound is 6

5 0
2 years ago
Calculate the amount of mole of iron produced from the reaction of 15.9 grams of iron oxide.
Usimov [2.4K]

Answer:

0.19875

Explanation:

nFe2O3=0.099375

nFe=2nFe2O3=0.19875

3 0
2 years ago
What is the anwser to this question
Drupady [299]

Answer:

Listen this is something you need to figure out because these questions prepare you for the future. Watch the map and use your critical thinking skills to answer the question. You got this!!

3 0
3 years ago
What is easier to observe about an object,it’s physical properties or it’s chemical properties. Explain why.
Sladkaya [172]

Answer:

Physical Properties

Explanation:

You are able to see physical properties but are unable to see chemical properties.

7 0
2 years ago
Describe how the particles of two substances interact when mixed. Be sure to discuss the activation energy and how the particles
Charra [1.4K]
A reaction mechanism must ultimately be understood as a "blow-by-blow" description of the molecular-level events whose sequence leads from reactants to products. These elementary steps (also called elementary reactions) are almost always very simple ones involving one, two, or [rarely] three chemical species which are classified

It is common knowledge that chemical reactions occur more rapidly at higher temperatures. Everyone knows that milk turns sour much more rapidly if stored at room temperature rather than in a refrigerator, butter goes rancid more quickly in the summer than in the winter, and eggs hard-boil more quickly at sea level than in the mountains. For the same reason, cold-blooded animals such as reptiles and insects tend to be noticeably more lethargic on cold days.

Thermal energy relates direction to motion at the molecular level. As the temperature rises, molecules move faster and collide more vigorously, greatly increasing the likelihood of bond cleavages and rearrangements as described above.
8 0
2 years ago
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