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marshall27 [118]
3 years ago
12

What is the most important simlarity between rusting and burning?

Chemistry
1 answer:
KengaRu [80]3 years ago
8 0
Both are oxidation reactions.  Burning is just a lot faster than rusting.
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Why is it difficult to pull nitrogen from the atmosphere into the nitrogen cycle of the biosphere?
Jlenok [28]

Answer:

Because only a few bacterias can "fix" the atmosphere nitrogen.

Explanation:

The nitrogen at the atmosphere is in the form of N₂ and represents 78% of the atmosphere composition. The element is part of the constitution of nucleic acids and proteins, so the living beings needed them.

However, the animals and the plants can't catch the N₂. Some bacterias that live in mutualism with plants have this ability, and they "fix" the atmosphere nitrogen, transforming the N₂ in the ions nitrite (NO₃⁻) or ammonia (NH₃), which can be caught by the plants.

Them, when the primary consumers eat the plants they catch the nitrogen, which will be passed through the food chain.

So, it's difficult to pull nitrogen from the atmosphere into the nitrogen cycle of the biosphere because only a few bacterias can do it.

5 0
3 years ago
You have just discovered a new organism.it is a single cell and has a cell wall but no nucleus. What kind of organism is it? Exp
jolli1 [7]
If it is a single cell then it is unicellular. it is an animal cell if it ha no cell wall and cells without nucleus are prokaryotes so it could be a Monera like bacteria.
8 0
3 years ago
The table shows the number of atoms of different elements that make up molecules of four compounds. Which compound has the chemi
Ann [662]

umm what?

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4 0
3 years ago
True or false: the central atom is a molecule is the one with the hightest electron affintity
adelina 88 [10]

Answer:

<em>T</em><em>r</em><em>u</em><em>e</em>

Explanation:

I don't know if im correct but i hope...

8 0
3 years ago
Are all atoms of the same element identical? Back up your answer with evidence and examples. pls help
Schach [20]
Yes since for atoms to be of the same element , they must have the same number of protons inside their nucleus . This means that 1- they will all have the same nucleon number ( mass number ) and that 2-they will all have the same number of electrons in their outermost shell which determines the chemical properties of the atom.
5 0
3 years ago
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