Calculate the enthalpy change, δh∘, for the "expansion" of methane: ch4(g)→c(g)+4h(g) express your answer to one decimal place and include the appropriate units. view available hint(s)

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.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

the awnser is group 12