Which of the following changes has a decrease in entropy?
n2o4(g) -> 2no2(g)
c6h6(l)-> c6h6(g)
2liclo3 (s) 3o2 (g) + 2licl
3fe(s) + 2o2(g) -. fe3o4(g)

Which substance has non polar covalent bonds

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these