Help me Look at the pictures Past due! Make an explanation of how my hypothesis is not supported.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Which statement best describes the he properties of iconic compounds ?

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)