What do you mean by redox reaction?

Did someone talk to me i'm bored ?​

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

Will mark brainliest how many electrons can be held in the energy level n = 4?