If 100 grams of Au-198 decays to 6.25 grams in 10.8 days. what is the half of Au-198?

Which of the following are correct values for the ideal gas laws constant r

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

Write and balance the chemical equation that represents the reaction of aqueous sulfuric acid with aqueous sodium hydroxide to form water and sodium sulfate. include phases.