Mole introduction

1. how many cents are in one mole of pennies?

What reaction is taking place? 02 + c3h8 = h20 + co2

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

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.