(3. 585g) contains 1. 388g of c, 0. 345g of h, 1. 850g o and its molar mass is 62g. What is the molecular formula of this substance?.

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.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains