What event happens underwater to cause a tsunami?

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775