.What occurs during a chemical reaction? Atoms of two or more elements are destroyed Atoms of two or more elements oppose one another Atoms of two or more elements bond together

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

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.

Define a is a tiny pavket of energy