Which is a way that the elements are groupef on the periodic table

Express the following number in scientific notation. 0.026890 =

Nonpoint source pollution is difficult to control because it

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.