Can somone explain how i got this wrong. i don't understand how the decimal has to be in the front of 3.

Which subshell is represented by the actinides family?

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound

List and describe the neurological effects of the vocs and other air pollutants,as described by dr.theo colborn