PLEASE HELP TIMED TEST Part 1: Does the diagram illustrate an endothermic or an exothermic reaction? Give
reasons in support of your answer.
Part 2: Describe how you can determine the total change in enthalpy and activation
energy from the diagram and if each is positive or negative.

What effect might melting sea ice have for people who live in coastal areas?

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Carbon-14 undergoes radioactive decay in the reaction above. determine the type of radiation emitted in this reaction and describe what is happening to the nucleus during this reaction.