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

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.