What is a proton?
- the positively charged particle found in atomic nuclel
- uncharged particle found in atomic nuclei
- negatively charged particle found in atomic nuclei
- none of the above

What is the solubility of substance?

Complete each row of the table below by filling in the missing prefix or missing exponent.

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