Which is a physical change?
a. strawberries are cooked into jelly
b. strawberries are left out to mold
c. strawberries are liquefied in a blender

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers