Propane can be cracked to produce propane and hydrogen. Complete the symbol equation for the reaction.

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

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.

Why is retrograde motion an apparent motion