Three of the functions of proteins are as antibodies, as enzymes and as messengers. As antibodies, they protect the cells from diseases ie they fight diseases. As enzymes, they regulate the chemical reactions within cells, and thirdly they transmit signals as messengers such as hormones do in co-ordinating biological processes. Proteins are so diverse because of their unique 3-D structures which their polymers form from the 20 amino acids available as their building blocks.
Since benzene is a covalently bonded chemical, ions and ionic bonds have no bearing on it. Simply put, boiling will cause the molecules to split from one another and turn into a gas.
Benzene boils at a greater temperature than other hydrocarbons with comparable molecular sizes, at 80°C (pentane and hexane, for example). The increased boiling point is most likely caused by how simple it is to create transient dipoles involving the delocalized electrons. At 111°C, methylbenzene begins to boil. Pure benzene and pure toluene have normal boiling points of 80.1 C and 110.6 C, respectively. Due to fewer intermolecular interactions, benzene has a lower boiling point than toluene.
Learn more about benzene here-
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Oxygen can combine with a metal to produce a compound
Answer:
The final volume is 6.4 L.
Explanation:
Dilution is reducing the concentration of a chemical and is achieved by adding more solvent to the same amount of solute. In other words, dilution is the procedure that is followed to prepare a less concentrated solution from a more concentrated one, and it simply consists of adding more solvent.
In a dilution the amount of solute does not vary, and as only more volume (and mass) of solvent is being added, the concentration of the solute decreases.
In a dilution the expression is used:
Ci*Vi = Cf*Vf
where:
- Ci: initial concentration
- Vi: initial volume
- Cf: final concentration
- Vf: final volume
In this case:
- Ci: 8 M
- Vi: 2 L
- Cf: 2.5 M
- Vf: ?
Replacing:
8 M* 2 L= 2.5 M* Vf
Solving:
Vf=6.4 L
<u><em>The final volume is 6.4 L.</em></u>
Permafrost soil (gelisol) is b) fragile.