It's a chemical change because a new compound is formed
Just do it one at a time. How is heart rate affected by exersice? Well, think about it; When you run, your heart rate goes up. When you rest, it goes down.
Take you time, think carefully and you'll get it.
How are bean seeds affected by water with detergent in it? Well it's not pure water. it's like feeding it soap and expecting it to grow..
<span>Abbreviated systematic numbering for Linolenic Acid is,
18:3, n-3
Explanation:
In above abbreviation
18 specifies number of carbon atoms in Linolenic Acid,
3 specifies the number of double bonds and
n-3 specifies the position of first double bond from methyl end. The structure of Linolenic Acid is as follow,</span>