Explanation:
Bacteria play a key role in the nitrogen cycle.
Nitrogen-fixing microorganisms capture atmospheric nitrogen by converting it to ammonia— NH3start text, N, H, end text, start subscript, 3, end subscript—which can be taken up by plants and used to make organic molecules.
Answer:
The sign is negative (-)
Explanation:
it shows that heat was give off to the surrounding
Answer:
1. 0.023 M H3O+.
2. pOH = 5.52.
3. pH=9.45
4. 0.0018 M OH-
Explanation:
Hello,
In this case, such order could be computed by means of the pH, the lower the pH the more acid the solution, thus:
1. 0.0018 M OH-:

2. 0.023 M H3O+

3. pH=9.45
4.

Therefore the order is
1. 0.023 M H3O+.
2. pOH = 5.52.
3. pH=9.45
4. 0.0018 M OH-
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Explanation:
The interatomic and the intermolecular. Interatomic Unions: They are those that are established between the atoms. There are three types. In two of them, the so-called Ionic and Covalent, the atoms try to
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Las interatómicas y las intermoleculares. Uniones Interatómicas: Son las que se establecen entre los átomos. Hay de tres tipos. En dos de ellas, las llamadas Iónicas y Covalentes, los átomos tratan de llegar a completar el último nivel con ocho electrones cumpliendo con la clásica teoría del octeto de Lewis.