Element Dy has 3 known isotopes. If.2% of the sample has a mass of 160 amu, .06% has a mass of 160.9 amu and the remaining has a mass 162
amu, what is the predicted mass of Dy?

Which formula can be used to calculate the molar mass of hydrogen peroxide

Chemistry worksheet - i am not sure what they are asking for exactly?

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point