What is the enthalpy of reaction for the decomposition of NO2(g)?

2NO2(g) --> N2(g) + 2O2(g)
kJ?

This reaction is?endothermic or exothermic

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

What type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? view available hint(s) what type of interaction occurs between the r groups of valine and isoleucine in a tertiary structure? salt bridge disulfide bridge hydrogen bond hydrophobic interaction

Is a pencil falling to the floor anon contact force, a force, or a contact force