At stp the volume is 22.4 L .
<span>hope this helps!</span>
It stands to me it looks like it is a caution
Explanation:
Alkanes are the simple hydrocarbons that have only carbon and hydrogen atoms attached to each other through single bonds.
General chemical formula of an alkane is
, where n is any integer.
For example, if n = 5 then formula of the alkane will be as follows.

= 
= 
A suffix "-ane" is added in the name of an alkane. So, an alkane with five carbon atoms will be known as pentane.
Isotopes of the same element differ only in the number of neutrons an atom has. Its still the same element because the number of protons define an element. Just their neutrons and mass number is different.
Explanation:
Benzal .....
Molecular Formula: C11H12O4