So Helium walks into a bar and orders a beer...
The bartender says, "Sorry we don't serve noble gases here."
Helium doesn't react.
Pretty sure it's a Compound :)
Answer:
It's coefficient to the front of each element that requires it.
Explanation:
It is coefficient to the front of each element or compound that requires it. Essentially you are multiplying the amount of atoms or compounds on one side to match the amount on the other side.
Explanation:
Elements need a total of eight electrons to gain stability and look like a noble gas. So, they sometimes need sharing of two, four or even six electrons to complete their octate. So, they form double and triple covalent bonds. One more the reason is the interaction between the p orbitals of the combining atoms. for example A double bond, as in ethene H2C=CH2, arises from one combination of the s orbitals and one combination of the p_y orbitals.
Changing the position of the substituents in an organic molecule will often result in a different chemical compound. If the structure of the molecule changes but it still has the same molecular formula, i.e., the same number of each atom, then this is called a structural isomer. However, it is possible to change the position of a substituent and the structure of the molecule remain unchanged. This would most likely occur in symmetric molecules.
CH₃ - CH₂ - CH₂ - CH₂ - OH 1-butanol
CH₃ - CH₂ - CH - CH₃ 2 - butanol
|
OH
Looking at the two structures above, the position of the -OH was moved from the 1-carbon to the 2-carbon, resulting in two different molecules. These are structural isomers. However, we can also move the -OH group without changing the molecule.
CH₃ - CH₂ - CH - CH₃ 2-butanol
|
OH
CH₃ - CH - CH₂ - CH₃ 2-butanol
|
OH
In the above structure, it appears that the -OH group was moved from the 2-carbon to the 3-carbon, but since this molecule is symmetrical, the 2- and 3-carbons are equivalent. Therefore, swapping substituents has no effect on the structure of the molecule and these are equivalent.
