H2O is an example of what formula?

Asmall amount of a solid is added to water. the observation made after fifteen minutes is shown in the figure. which of these solids has been probably added to water? a) oil b) sand c) sugar d) wood chips

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.