Metallic mercury is obtained by heating the mineral cinnabar (HgS)(HgS) in air: HgS(s)+O2(g)→Hg(l)+SO2(g)HgS(s)+O2( g)→Hg(l)+SO2(g) Part A Use the data in Appendix B in the textbook to calculate ΔH∘ΔH∘ (in kilojoules) for the reaction. Express your answer using four significant figures.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

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