Due to its low-density styrofoam isn't economically feasible to recycle and is becoming a widespread pollutant. Styrofoam is polymerized from which starting molecule? A. Septane

B. Ethylene

C. Styrene

D. Acetylene

PLS HELP THANK YOU!!!

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.

In which reaction is precipitation occurring?

The three types is stress that act on earths rocks are compression, tension, and