What the difference between
seller and consumer?

The seller makes and produces the product.

The consumer buys and uses the product.

This is the elite difference between the two.

A seller offers to the consumer and the consumer purchases and gives the currency to the seller

after balancing the chemical equation, what are the coefficients for these compounds?

h2s      

⇒ 3

hno3    

⇒ 2

works for edg

answer; the edward snowden leaks of nsa classified material;