What is the oxidation number of s2o3

the formula is 2x+-6=0 and x = 3 however would s = 3 or =6?

Most likely a is the answer - because  you generate   38 atp's but also consume an atp.   each atp gives approx. less than 4 kcal so probably a is the closest answer.

What’s the question

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water

So3 that’s what i think