To balance a redox reaction, what must be done? - Water must be added to both sides of the equation.
- The ion charge on both sides of the equation must equal zero.
- H+ and OH− must be added to opposite sides of the equation.
- The increase and decrease in oxidation numbers must be balanced.

10 years is the answer

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

how important do you think an instrument is to the musician who plays it?