Which chemical equation is unbalanced? 1. C + O --> CO2
2. Sr + O2 --> 2SrO
3. 6H2 + 3O2 --> 6H2O
4. H2 + H2 + O2 --> H2O + H2O

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