My mom gives birth to 2 children. one is a boy, the other is a.. and i oop.

How can you keep track of variables in a science experiment?

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

Will give ! ! widentify the advantages and disadvantages of renewable and nonrenewable energy resources.