As one proceeds from oxygen to polonium in Group 16 (VIA) of the Periodic Table, the number of valence electrons
for each succeeding element

Who is better, messi or cristiano, i need this for a chemistry class. asap

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

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.