This is science ,can someone please help me ​

Which of the following units is not an official si unit? mole liter kilogram ampere

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n

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