Which statement is true? a hypothesis must be based on the researcher's analysis of the data collected in the experiment. a hypothesis must be testable for it to be useful in scientific research. a hypothesis must be supported by the results of the research study. nextreset

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