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Easy definition for atom and atomic mass

Melting 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.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.