How many moles are in 9.55E23 molecules of oxygen gas The first blank is the numeric answer
The second blank is for the unit

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

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.